The US president's video message comes after mixed messages from officials about his condition.

Spain's health authorities say the test gives results in 15 minutes and is more than 95% accurate.

Both Azerbaijan's second city and the capital of the breakaway region come under heavy fire.

World record holder Eliud Kipchoge is beaten in the London Marathon as Shura Kitata wins a thrilling sprint finish to claim an unexpected victory.

Top seed Simona Halep is out of the French Open after losing to Iga Swiatek in little more than an hour in the fourth round.

The US president's positive test result came after a busy week of campaigning, debating and events.

Videos shared on social media appear to show officers extorting money and even shooting people. 

Volunteer hackers and security experts are working together to help protect the presidential election.