HIV is evolving to become less deadly and less infectious as it spends more time infecting people, according to a major scientific study.

North Korea refuses to deny involvement in a cyber-attack on Sony Pictures, ahead of the release of a film about North Korean leader Kim Jong-un.

Russian President Vladimir Putin says the proposed South Stream gas pipeline will not go ahead, blaming opposition from the EU.

Two heavily pregnant refugees are taken into a detention centre in Darwin, ending a three-day standoff, Australia's immigration department says.

Phil Rudd, the drummer of rock band AC/DC, pleads not guilty to charges of threatening to kill and possession of drugs.

The World Bank cuts its 2014 GDP growth projections for the three nations worst hit by Ebola, saying their economies continue to be crippled.

Gunmen have killed some 36 quarry workers near the north-eastern Kenyan town of Mandera close to the border with Somalia, police say.

Organisers of the Australia Open change their extreme heat policy ahead of the 2015 tennis tournament, two days after Australia had its hottest month on record.