Four Latin American and Caribbean nations warn women to avoid pregnancy after Brazil's outbreak of Zika, a virus linked to severe birth defects.

Iran and China pledge closer economic ties, as China's Xi Jinping becomes the first leader to visit Tehran since sanctions were lifted.

South Sudan misses a key deadline to create a transitional government, part of a peace deal to end the civil war which began in 2013.

A 13-year-old Palestinian girl who tried to stab a security guard at an Israeli settlement in the occupied West Bank has been shot dead, police say.

US Vice-President Joe Biden says the US and Turkey are prepared to seek a military solution in Syria if a political agreement proves impossible.

Services from the port of Calais are disrupted after 50 migrants boarded a ship, the mayor of Calais says.

Storks feeding on rubbish dumps instead of migrating are more likely to survive the winter, research shows.

Three US airmen damaged a nuclear missile in its silo while carrying out maintenance in 2014, but officials insist there was no risk to public safety.