Three European aid workers are released by Islamist rebels in Mali after being kidnapped from Algeria last October.

Navigable photographs of polar explorers Sir Ernest Shackleton and Robert Falcon Scott's Antarctic huts are put online by Google.

Yemen says it has arrested members of an alleged Iranian-led spy ring, prompting its president to warn Iran to stay out of Yemeni affairs.

Greenland's northern Petermann Glacier calves an iceberg twice the size of Manhattan, the second to break off in two years, scientists say.

The killing of three top figures at the heart of Syria's defence establishment shows President Bashar al-Assad is losing control, the White House says.

A previously little-known general, Hyon Yong-chol, has been confirmed as North Korea's new army chief as Kim Jong-un's dramatic reshuffle goes on.

The US state of Texas executes its first death row inmate with a single dose of the sedative pentobarbital, after switching from a three-drug cocktail.

Voters in the disputed enclave of Nagorno-Karabakh are to vote in a presidential election, amid fears of renewed conflict in the region.