Intelligence sources in the Middle East have indicated that the summer in the region could turn out to be particularly hot in terms of political climate.

• April 13, 2010

World leaders at a security summit in the US hear dire warnings about nuclear material falling into the wrong hands.

• April 13, 2010

Iran asks the UN to investigate Western actions in Afghanistan and Iraq amid growing nuclear tensions.

• April 13, 2010

Ukraine has agreed to get rid of its stockpile of weapons-grade uranium in a move that gave President Obama the first significant achievement at the Nuclear Security Summit of 47 nations that opened yesterday in Washington.

• April 13, 2010

U.S. President Barack Obama will meet Turkish Prime Minister Recep Tayyip Erdoğan on Tuesday, on the sidelines of his nuclear security summit in Washington, the White House said.

• April 12, 2010

A leading judge has been shot dead at his apartment building in the Russian capital, Moscow court officials have said.

• April 12, 2010

Ousted President Bakiyev addressed supporters in Kyrgyzstan on Monday, the first time he had been seen since fleeing violent protests last week. He warned of "further bloodshed" should his opponents attempt to seize him.

• April 12, 2010

Twelve years ago, fearing for her health, Inger Nordholm quit her job as a hairdresser in this seaside Swedish community, one of several that have been competing for the right to become the country's permanent storage site for radioactive waste.

• April 12, 2010