this is bbc world news, the headlines: the white house says it is planning a second summit between president trump and the leader of north korea, kim jong—un. it'll take place at the end of next month. the location has yet to be announced. a spokesperson for donald trump says allegations the president asked his lawyer to lie to congress are "categorically false". it was in response to a buzzfeed article on michael cohen's testimony about plans for a hotel in moscow. more anti—government clashes have taken place in the sudanese capital khartoum. police reportedly fired live ammunition at hundreds of people who were mourning the death of a man killed during an earlier demonstration. prince philip has visited hospital for "a precautionary check—up" after a car crash on thursday. doctors found "no injuries of concern". police are investigating the incident, and say they will take "any appropriate action". at 10pm, clive myrie will be here with a full round—up of the day's news.

but first, brazil seemed set to become one of the most successful countries of the 21st century. bbc news looks at how the dreams of a better future disappeared. in brazil, the boom years of lula had given way to the violent street protests. [lea-zit; tie; tyre-2:9! i". file; fez-"5‘s"; in a closely—fought contest. ififfaziaérz'ra 7g'51f?féi 55755277325": 22—2..._w . .. . more than 157 persons were convicted for bribery and illegality.

and the politicians in turn have begun to look for a scapegoat. president dilma was the obvious choice. dilma's deputy, michel temer, became brazil's new president, but would the country's devastating corruption investigation stop there or would brazil's political convulsions continue? in her first term of office, dilma had made the mistake of alienating congress. now more than ever, she was going to need to build bridges. but right from the start, her main political rivals began manoeuvring against her. former presidential candidate aecio neves had neverforgiven dilma for his defeat at the 2014 election. now, he joined forces with a leading

congressman, eduardo cunha. they had a common interest. they both wanted to get rid of dilma. with the unofficial support of neves‘ party, cunha was elected as president of the lower house of deputies. from here, he was in a perfect position to block any economic reforms and to plunge the knife into dilma's presidency. dilma's problems were not limited to her political rivals.

the juggernaut economy had slammed on the brakes. and the country had fallen into recession. in the first year of her second term, brazil's gdp fell by nearly 4% and the stock market fell by 13%. under lula, workers‘ party approval ratings had been sky—high. now, dilma saw the party's ratings slide with her own. on the 12th of april, over 1.5 million people took to the streets, a million of them in sao paulo. once again, it was the green and yellow of the national team shirt that the protesters wore. it was a massive ramping up of anger against the dilma presidency. now it was the turn of a new force in brazil to pile further

pressure onto dilma. judge sergio moro was leading the investigation into corruption known as operation carwash. injune 2015, the ceo of brazil's largest construction firm, marcelo odebrecht, was arrested. it was a sign that even the biggest brazilian business could be broken up by carwash. in december 2015, eduardo cunha made his move and launched impeachment proceedings against dilma. to support his case, cunha cited a recent congressional report on accounting practises. the report had noted that dilma's administration had used an age old tactic. it had delayed paying back money to public banks to cover

shortfalls in the budget. events began to move quickly. in march 2016, the disgraced construction boss marcelo odebrecht revealed a detailed list of politicians his company had been bribing. top of the list was dilma's defeated political rival, the centre—right psdb leader aecio neves. odebrecht‘s list also revealed that senior politicians from the ruling workers‘ party had been taking bribes and illegal campaign donations. butjudge sergio moro was about to reveal his biggest catch of all.

former president lula was alleged to have a holiday apartment in a seaside city. moro claimed that lula had received free improvements to the apartment as a bribe from the construction company oas. on march the 4th, police raided lula's house. the most popular leader in brazilian history was now viewed with the same suspicion as any other corrupt politician. on march the 10th, dilma asked lula tojoin her cabinet as chief of staff. many saw this as an attempt to provide lula with immunity from prosecution by moro. but dilma claims she had other reasons. protesters began to react to the political drama

that was unfolding. on march the 13th, some of the largest demonstrations in brazilian history were held. nearly 4 million brazilians took to the street demanding the arrest of lula and the impeachment of dilma. the sight of a giant balloon of lula in a striped prison outfit resonated across the world. once the most popular politician on the planet, lula was about to fall. brazil's politicians sensed the opportunity to press home the advantage against the ruling workers‘ party. first, neves tried his luck, but having been accused of corruption himself, he soon had to beat a hasty retreat from a hostile crowd. but on the far right, jair bolsonaro was more warmly received. to the people on the streets, his hands were seen as clean.

the tactics behind operation ca rwash, although introduced in brazil by sergio moro, had not been invented by him. moro had copied his tactics from the italian operation known as mani pulite, which had tackled the mafia in the 1990s. in an article written in 2004, moro had said...

now, moro put his theory into practice and made his most decisive and controversial step to date. in a move that many considered illegal, he released details to the press of a phone call. dilma seemed to be suggesting that lula should take a position

in her cabinet in order to protect himself from prosecution. butjudge moro said that his actions were in the public interest. "democracy in a free society," he wrote, "requires that the governed know what their governors are doing, even when they try to act in the dark." the reaction on the streets was fury. 1.4 million marched in sao paulo, outraged at the emerging evidence of a cover—up at the very highest levels. the next day went very badly for dilma. lula‘s appointment as chief of staff was blocked by the courts and the lower house of congress elected a special commission to impeach her, charging her government with breaking budget rules. in april, the lower house voted that dilma should be tried in the senate.

jair bolsonaro dedicated his vote to a notorious army torturer in the dictatorship era. on the street, dilma‘s opponents were celebrating. the following month, dilma was suspended from office. for dilma, the writing was on the wall. but her political enemies had another objective now, how to stop carwash before it took them all down. now, another wiretap between a senator and a former executive from petrobras showed how low the political class had fallen. the plan to replace

dilma with her deputy, dilma with her deputy, michel temer, was now given extra weight by a visit he made to see general antonio villas boas. the support of the armed forces was vital to ensure that dilma was safely removed. in the senate, the man in charge of leading the impeachment proceedings against dilma on a charge of fiscal manoeuvring was judge ricardo lewandowski, president of the supreme court. dilma‘s defence, led byjose eduardo cardozo, claimed the impeachment was little more than a parliamentary coup. once the process had gone to the senate, the result was never in doubt.

while the world‘s eyes were diverted to the olympics, brazil‘s politicians calmly removed their democratically elected head of state. on august the 31st, less than a week after the trial had begun, dilma was impeached. within two hours, her deputy, michel temer, had been installed as her successor. but there was one more act of political drama to be settled in 2016. it was revealed that dilma‘s nemesis, eduardo cunha, had himself taken over $5 million in bribes. stripped of his office and banned from politics, eduardo cunha was arrested in october. operation ca rwash, led by sergio moro, cleverly using the country‘s media and nearly 200 plea bargains, had exposed a shocking level of corruption. by the end of 2016, the president

had been successfully removed by her enemies. but could operation carwash be contained or would it claim yet more victims? hello there. cold air has arrived, and it‘s set to stay for the next week or more. and it‘s certainly felt rather more wintry over the last 2a hours. not only because it‘s been cold, but we‘ve also had a bit of sleet and snow, mainly over the hills, coming from that cloud there. that cloud is still around at the moment, so saturday morning is not as frosty. we had temperatures of —11 in scotland on friday morning. there is more cloud around, and saturday probably a dull day for many of us. best of the sunshine in northern scotland and east anglia, still got some showers around. mostly rain, i think, by this stage. the bulk of the showers for wales and the southwest could be heavy and maybe a little bit of sunshine between those showers. further north and east, those temperatures really struggling to 4 or 5 degrees.

as we head into the evening and overnight, those showers continue to decay, continue to fade away and the cloud starts to break up a bit as well. we‘ve got a band of rain approaching in the far northwest later on, but ahead of that, likely to have a frost, in rural areas in particular, could be down to —2 or —3 if the cloud breaks. if that happens, we get off to a cold start, but there should be more sunshine across england and well on sunday, particularly towards the east. that weather front bringing this cloud and perhaps some hill snow is really fading away to next to nothing by the time it arrives in northern england and north wales. and then behind that, we probably get the sunnier skies coming into scotland and northern ireland, still only 6 degrees at best. that week, the weather fronts slips way and is gone by monday. we have a frosty start for england and wales and eastern scotland. the weather starting to change in the northwest, mind you. the winds picking up on monday, the clouds increasing and we have got a more active weather front to break some heavier rain into the northwest later, but it meets the cold air, meets the hills and we get some snow in the highlands of scotland. england and wales, a dry day with winds picking up.

there will be some sunshine and still cold at about 5 degrees. that weather front sweeps down across the uk, some rain and maybe some sleet and snow over the hills. at the moment, it looks like it should clear away by the time we get to tuesday. leaving behind a northwesterly wind, some sunshine, some showers, mostly coming into western scotland and northern ireland over the irish sea into western parts of england and wales. there could be some wintriness this in those showers, some sleet and snow mainly over the hills and maybe some hail as well. temperature still struggling, three to five celsius. the weather front having swept through, then gets stuck across this part of the north sea as an area of low pressure looks like it should develop on it. that is why we have got more cloud in the forecast for wednesday for eastern scotland, northeast england, some rain inland. and you don‘t have to go too far inland in the cold air, sleet and snow, so some slippery conditions and some ice around. but away from here, a good chance of staying dry, some sunshine, fewer showers,

again those temperatures struggling to five or six celsius. northwesterly winds middle parts of the week, look what happens, though. the wind direction is going to change. it looks like we will have more of a northeasterly wind later on in the week and that will bring in even more colder air. it will feel cold in the wind, which is going to be strongest further south across the uk because this higher pressure to the north and not far away, there is actually some milder air and some weather fronts coming in from the atlantic that could just tickle the far northwest of scotland. away from here, it is really going to be cold. it will feel cold in those winds for the southern half of the uk. this is where we‘re more likely to find some snow and some ice and some showers. frosty nights, mind you, especially underneath the high pressure, but there will be some sunshine. it is no beast from the east. the duke of edinburgh was examined in hospital today after yesterday‘s car crash at sandringham. they say he had no injuries of concern. a nine—month—old baby in the other vehicle wasn‘t hurt, but two women suffered minor injuries.

the prince was left shocked and shaken. he was able to turn over, though. that was the first time i saw his face and i realised that i was holding the duke of edinburgh. police investigating the crash, say they‘ll take any appropriate action. also tonight... there are demands in washington for an investigation after reports president trump ordered his former lawyer to lie to congress over business links to russia. violence in sudan, as protesters demand an end to the rule of strongman president omar al—bashir.