The US president has won pledges from world leaders to work together to prevent groups such as al-Qaeda from getting their hands on nuclear weapons, steps Barack Obama said would make the world safer.

US President Barack Obama will attend the funeral of his Polish counterpart Lech Kaczynski, killed in an air crash in western Russia on Saturday. The leaders of Russia, France and Germany are also due to attend the burial in the city of Krakow on Sunday. 

F ormer Bosnian Serb leader, Radovan Karadzic, has cross-examined the first prosecution witness at the resumption of his war crimes trial at The Hague. Ahmet Zulic, a Bosnian Muslim, told the judges his elderly father-in-law had been burned alive by Serb forces. 

At least 400 people have been killed after a strong  earthquake struck China’s western province of Qinghai, officials and state media said. Another 8,000 people were believed to have been injured as homes collapsed leaving residents of the remote mountainous area trapped under the rubble.