A month on from the quakes Turkey and Syria count the cost

A month after a devastating earthquake hit Turkey and Syria, we speak to our reporter in Turkey where thousands of survivors face an uncertain future.

A fierce street-to-street battle for the city of Bakhmut is continuing in eastern Ukraine as Russian troops encircle Ukrainian forces - we speak to a volunteer evacuating civilians on why some remain in and around the city.

Twitter insiders have told the BBC that the company is no longer able to protect users from trolling, state-co-ordinated disinformation and child sexual exploitation.