The first person to be diagnosed with Ebola within the US has deteriorated from a serious to a critical condition, doctors in the state of Texas say.

A 36-year-old woman in Sweden has given birth to a baby boy using a transplanted womb in a medical first, doctors say.

Hong Kong police arrest 19 people, including suspected triad gang members accused of attacking rallies, as talks with the government are shelved.

North and South Korea agree to resume formal high-level talks that had effectively been suspended since February, reports from Seoul say.

The parents of US hostage Peter Kassig appeal to Islamic State militants to "show mercy" and release him, in a video statement.

Democracy rallies in Hong Kong are given an added bite by demonstrators who bring their pet dogs to protest venues.

Officials say they have made progress towards creating the world's biggest free trade zone.

Thousands of Venezuelans, including President Maduro, attend the funeral of lawmaker Robert Serra and his partner, who were murdered this week.