A study of people born in the same year has uncovered a huge difference in the speed at which their bodies age.

French special forces kill a militant Islamist in Mali who was said to have been freed in exchange for the release of French citizen Serge Lazarevic.

A trader accused of manipulating the Libor rate has told a court that senior managers knew what he was doing.

Talks fail to avert a 24-hour Tube strike due to start on Wednesday evening - and no further negotiations are planned.

The US Army is planning to reduce the size of its force by 40,000 soldiers over the next two years, according to US media reports.

A St Paul's Cathedral service and a wreath laying ceremony will take place later to mark the 10th anniversary of the attacks that killed 52 people on London's transport network.

Hungarian MPs pass legislation to give the government the power to close the borders to all migrants and build a border fence.

The US-led coalition fighting Islamic State is "intensifying" its campaign against the group's base in northern Syria, President Barack Obama says.