jon ironmonger, bbc news, london.police fired tear gas and protestors responded with homemade mortars and fireworks. demonstrators are demanding the return of fuel subsidies, scrapped by the government last week. now it's time for a look at the weather with phil avery. —— to speak with sarah. we have had slightly mixed fortunes today, haven't we? we have. some of us have had blue sky and sunshine but other parts of the country it has been a cloud and rain lasting through much of the day. this is one of the areas that saw the cotton sunshine in sterling earlier on in the day. but we still have that slow moving rather front through much of southern england through the ceiling and it will push its way northwards and it will push its way northwards and rain pushing across a good part of england. heavy bursts on that. clear skies for scotland and northern ireland, single figures with a touch of frost. some mist and five pages here. sunday we start with ingrid and wales rain. it gradually pushes towards the east during the

jon ironmonger, bbc, london.re ageing. that's according to an international team of scientists, who've described the finding as an "amazing surprise". in a study of 1000 people in new zealand, they found that not only were slower walkers' bodies ageing more quickly, but their faces looked older and they had smaller brains. doctor leena rasmussen led the research and spoke to the bbc earlier. we have measured it in three ways in this dunedin study where the data is coming from. we measured the average speed at which people are walking the normal pace, and we have measured the maximum speed without running, and then we have measured a dual task and speed, meaning people had to recite alternating letters of the alphabet while walking. and each of these three measures are equally associated with the accelerated ageing measures we have been investigating. we found, in the study, that people among the 45 —year—olds that we studied, that the once, the 20% slot was walker's, had multiple signs of accelerated ageing compa

jon ironmonger, bbc london.construction in new orleans. at least one person died and 18 others were injured when part of the new hard rock hotel collapsed. shaun hassett reports. get to the back... this is the moment when the upper floors of a building in downtown new orleans gave way. still under construction, it was set to be a new hard rock hotel, now it is a disaster site. there was lots of noise. we saw workers up there. i mean, it was crazy. ijust can't even imagine what it was going on up there. it sounded like — we thought it was gunfire but it wasn't gunfire, it was a building collapsing. construction workers ran for their lives, as the building crumbled around them. some escaped injury by a matter of metres. this man was on the 18th floor at the time. i turn around and i see one guy lose his balance and he kind of fell on the concrete and things werejust... smoke started coming from everywhere so i could not really see where, you know, the problem started at, but the concrete started falling. emergency