US President Barack Obama and his Russian counterpart, Dmitry Medvedev, signed a landmark nuclear arms treaty in the Czech capital, Prague, on April 8.

Rescue workers dug out bodies and scoured for survivors on April 8 after a torrent of mud dislodged by heavy rains ravaged a hillside slum near Rio de Janeiro, burying dozens of residents.

The UN ambassadors of six world powers are meeting in New York to discuss possible new sanctions against Iran over its nuclear programme.

Anti-government protesters on April 7 broke into the Thai parliamentary compound, forcing the Cabinet and lawmakers to cancel their sessions.

The opposition in Kyrgyzstan says it is setting up a "people's government" after deadly clashes left dozens dead.

Sri Lankans on April 8 had a free vote for the first parliamentary since the end of a quarter-century war last year, in a poll likely to further entrench President Mahinda Rajapaksa's political dominance.

President Barack Obama headed to the Czech Republic on April 7 night to meet with Russian President Dmitry Medvedev and sign an arms control agreement that reduces the nuclear stockpiles of both nations.

The FBI was investigating an incident where an alleged Qatari diplomat tried to ignite something on board a United Airlines airliner flying from Washington to Denver, Colorado on April 7 night, local media outlets reported.

British Prime Minister Gordon Brown on April 6 launched a month-long election campaign likely to be dominated by the economy and shaping up to be the most unpredictable contest since 1992.

The Democratic People’s Republic of Korea (DPRK) has convicted and sentenced an American man to eight years in a labour prison and a fine equivalent to $700,000 for entering the country illegally and for unspecified hostile acts.