Russia and Ukraine swapped dozens of prisoners on Saturday in a carefully-negotiated rapprochement that brought Western praise and could thaw a freeze in relations since Moscow's annexation of the Crimea region in 2014.

Hong Kong police prevented anti-government protesters from blocking access to the airport on Saturday, but fired tear gas for a second night running in the Chinese-ruled city's densely populated district of Mong Kok in the 14th week of unrest.

A Los Angeles County resident has died from a lung illness possibly tied to vaping, bringing the total number of such U.S. deaths to five, health officials said on Friday.

Pope Francis said on Saturday rapid deforestation and the loss of biodiversity in individual countries should not be treated as local issues since they threaten the future of the planet.

Hong Kong police prevented anti-government protesters from blocking access to the airport on Saturday, but fired tear gas for a second night running in the Chinese-ruled city's densely populated district of Mong Kok in the 14th week of unrest.

Sudan's toppled former leader Omar al-Bashir was the only person with a key to a room at the presidential palace holding millions of euros, his last office manager testified on Saturday.

* Former president only person with key to cash, witness says

India lost contact with a spacecraft it was trying to land on the moon on Saturday, its space agency said, in a setback for the nation's ambitious plans to become the first country to probe the unexplored lunar south pole.

Iran said on Saturday it was now capable of raising uranium enrichment past the 20% level and had launched advanced centrifuge machines in further breaches of commitments to limit its nuclear activity under a 2015 deal with world powers.

Iran said on Saturday it was now capable of raising uranium enrichment past the 20% level and had launched advanced centrifuge machines in further breaches of commitments to limit its nuclear activity under a 2015 deal with world powers.