Ethiopia starts diverting a stretch of the Blue Nile to make way for a dam that has caused a dispute with countries downstream, state media say.

Guatemala's former President Alfonso Portillo pleads not guilty to money laundering charges, in a US court.

Clashes break out between Muslims and Buddhists in Burma's north-eastern Shan state, with a mosque and some shops reportedly set alight.

New synthetic drugs are emerging at an ever faster rate in Europe, says the EU's drug agency, with legal highs increasingly being shipped from Asia.

The two most powerful street gangs in Honduras declare a truce in a bid to reduce violence in the country with one of the world's highest murder rate.

A cargo train carrying chemicals hits an articulated lorry and derails in the US state of Maryland, injuring the lorry driver and causing an explosion felt half a mile away.

An extreme sport star from Russia has successfully completed the world's highest base jump - leaping off the north face of Mount Everest.

A Tunisian court has given 20 people two-year suspended jail terms for an attack on the US embassy in Tunis in September 2012, their lawyer says.