since november 2012 a position he keeps despite his promotion. >> translation: his highness mohammed bin nayef was selected as the crown prince deputy prime minister interior americans, and head of the political and security affairs council. >> reporter: mohammed bin nayef studied in the united states and retains good relations with saudi arabia's close ally. u.s. embassy cables released by wikileaks show him being hawkish on iran. he also helped in the leading of saudi-led air strikes to stop iran-backed houthi rebels. al qaeda fighters tried to assassinate him six years ago when he was head of security services. he's been tough on internal security. there has been arrests of suspected al qaeda and i.s.i.l. members. he's encouraged government aid to syria, and discouraged private donations to rebel groups. during his time as interior minister saudi arabia remained tough on descent at home. activists continue to be detained and imprisoned. mohammed bin nayef is the first grandson of the reining monarch, to be appointed second in command. as crown prince he becomes one of the most powerful men

prince mohamed bin nayef replaces his uncle in a major reshuffle. yef is also minister of interior and chairman of the council for political and security affairs, a body that makes decisions or threats facing the kingdom. the new crown prince has built strong ties with the u.s. when he was in -- charge of the fight against al-qaeda but this man is likely to play a crucial role in the future of the kingdom. the king's son has been appointed as new deputy crown prince. mohammed serves also has minister of defense and chief of the royal court. shakeups in saudi arabia are closely monitored by the world. the country is the world's biggest oil producer. >> previously there was questions about the succession about the issue of the first generation becoming very old. all of them being in the 70s and the 80s. now we have a second generation mostly fairly young in their 50s. very well experienced. >> reporter: saudi's new leaders face mounting challenges like the growing instability in neighboring yemen. the saudi government has recently launched air strikes

. >>> saudi arabia's king salman named his nephew mohammed bin nayef as the new crown prince and for the second time a non-royal will be foreign minister. the nigerian army says it rescued 300 women and girls. found in the forest. the last-known strong hold of the group >>> the earthquake m nepal. the u.n. food agencies says now, four days after the quake will aid be handed out in remote areas. andrew simmonds travelled to the foothills to see how difficult it could be. >> reporter: it's an operation that only stops for refuelling and briefings. while the military may have been mobilized quickly, it's not enough to bring the relief the country desperately needs. beyond the sprawl of the capital is where the extra effort is needed most. from this altitude you can see just how inaccessible the terrain is to the special forces rescuers. ltcol really has a colossal job on his hands. perched on mountainsides, homes that have collapsed. the army says there would be no way of reaching anyone trapped inside unless teams are winched down from helicopters in hundreds of thousands of locations.

prince mohammed bin nayef is the new heir apparent in saudi arabia. at 55 it makes him the most powerful man of his generation of the world's largest oil exporter. he's been the interior minister since 2012, a position he will keep. >> his highness prince mohammed bip nayef was selected as the crown prisons, deputy prime minister interior minister and head of the deputy affairs council. >> reporter: he studied in the united states and has close relations with saudi arabia's ally. cables show him as being hawkish on iran. he's over seen access in yemen edge involving multi-saudi-led air strikes to stop the yans of houthi-led rebels. al qaeda fighters tried to assassinate him six years ago. he's been tough on internal security. there has been arrests of suspected al qaeda, and more recently i.s.i.l. members. he encouraged government aid to syria and discouraged private donations to rebel groups. during his time as interior minister he's been tough on dissent at home. activists are detained and prison the nayef is the grandson of king abdul al-saud to be

. >>> saudi arabia's king salomon has named his any view mohamed bin nayef as crown prince.eria's army says it rescued nearly 300 women and girls from boko haram's last strong hold. >>> and now sites like twitter were being used by the opposition to organize demonstrations. the media say they are being targeted and protests have been shut down the protests happened after the president announced he would be running for a third term. malcolm tell us what has been happening. >> reporter: well on this street right now, just in the last few minutes, it has been very tense. there was a big crowd of protesters and the army were here trying to negotiate between the two groups. the army is quite respected here in burundi. the army asked the police to leave. the police didn't agree. so now, as you can see there is quite a large group of riot police moving back down the street. just a couple of minutes ago there were protesters here now they are down there, slowly moving in to try to disperse them are the police. let's just take a look at that. the police are walking up towards what is

king salmon put his 55-year-old nephew prince mohamed bin nayef, next the line to become king. 's the first of his generation to move one step from the throne. king salman also moved his own son, 30-year-old mohamed bin salman up to second in line. bin salman is saudi arabia's defense mipster and i already assuming a high-profile role in the military campaign that country has waged in yemen. he's also in charge of a key committee that oversees economic affairs. the most koch etted tricky time for saudi arabia and for u.s./audi relation, the sunni monarchy is keeping a close eye on its regional rival, shiite-run iran and the regime a longtime u.s. ally is weary of any american rapprochement with tehran. as for saudi arabia's critical industry oil, the royal shake-up left it largely untouched. longtime oil minister ali al nay nayimi kept his job, although replaced as chairman of the oil company by a well-known businessman. few think the changes will affect saudi oil production or the price of crude. >> oil is too important for the saudi economy in a very fundamental way for it to

than 5,000 people are confirmed dead >>> saudi arabia's calman named his nephew 55-year-old mohammed bin nayef as the crown prince. for the first time a np royal will be foreign minister. the nigerian army rescued 300 woman and girls. they were found in the forest the armed group's last known strong hold. >>> more on the top story on the earthquake. kathmandu is struggling to cope with influx in aiden. that's highlighted the importance of landroutes along the border. >> reporter: this man and his family are back in india. they spent three days trying to get out of nepalese capital kathmandu, after searching for help with little luck at an army camp and at kathmandu's airport. this group boarded. after a lot of difficulty i called my parents. my family asked why we weren't coming home. how could we come home earlier. we lost hope. >> by tuesday more than 2,500 people crossed the border here, 5km from nepal. hungry exhausted and far from home this government-run relief camp is the first stop. until now, many have not been able to contact the families and tell them their alive. >> we have met spe