BBC World Service

Four US soldiers have been killed at Bagram airbase in Afghanistan, hours after the US announced direct talks with the Taliban.

Suspected Boko Haram militants in Nigeria kill at least nine school children, in what survivors suggest is a response to growing vigilante groups.

Dilma Rousseff says she is proud so many people are fighting for a better country, as new protests take place in Sao Paulo and other cities.

The quality of a performance does not drive the amount of applause an audience gives, a study suggests.

As witnesses die, will the Holocaust be forgotten?

As witnesses die, will the Holocaust be forgotten?

Four US soldiers have been killed at Bagram airbase in Afghanistan, hours after the US announced direct talks with the Taliban.

The air force pilot who took her daughter on missions

The air force pilot who took her daughter on missions

Where is the middle class growing around the world?

A new consistent system of front-of-pack food labelling is to be introduced in the UK, the government says.

The Parliamentary Commission on Banking Standards calls for new measures, including criminal sanctions, to make bankers responsible for their own failings.

A silent, standing protest by performance artist Erdem Gunduz has been taken up by hundreds of anti-government demonstrators and spread to several Turkish cities.

Veronica Campbell-Brown of Jamaica is provisionally suspended from competition after testing positive for a banned substance.

The US is to open direct peace talks with the Taliban, senior White House officials have announced.

Students in Sao Paulo tell the BBC why the protests in the country are taking place

The US is to open direct peace talks with the Taliban after more than 10 years of war in Afghanistan, senior White House officials announce.

The Chilean Supreme Court approves the extradition of former Argentine judge Otilio Romano, accused of human rights abuses under the military government.

The Chilean Supreme Court approves the extradition of former Argentine judge Otilio Romano, accused of human rights abuses under the military government.

Montreal's Mayor Michael Applebaum resigns, a day after his arrest on 14 fraud charges, the latest scandal to hit Canadian local politics.