Russian President Vladimir Putin says Russia wants "a co-ordinating structure" in the fight against IS, as world leaders gather at the UN.

A Mexico City judge has sentenced three men for their roles in the kidnapping and murder of 13 young people two years ago.

The mystery of why some people appear to have healthy lungs despite a lifetime of smoking has been explained by scientists.

Tickets for centenary commemorations of the Battle of the Somme are made available by ballot.

Pope Francis appeals for unity and family love at a large open-air Mass in Philadelphia, ending his six-day visit to the US.

Oceanographers have been gathering evidence of a 'vicious circle' of wind-driven turbulence in the Arctic Ocean, stirring up heat from the depths.

Oceanographers gather evidence of a 'vicious circle' of wind-driven turbulence in the Arctic Ocean, stirring up heat from the depths.

Dozens of British troops are to be deployed to Somalia to help peacekeeping efforts to counter Islamic militants, David Cameron announces.