Girls dressed in "Hanfu" prepare for an event to mark the traditional Qixi festival, the Chinese equivalent of Valentine's Day, at a park in Beijing, China

Men carry a coffin of one of the victims after a drone strike, in Khogyani district of Nangarhar province, Afghanistan

Britain's Prime Minister Boris Johnson flies a Black Hornet nano drone during a meeting with military personnel on Salisbury plain training area near Salisbury

A gallery assistant poses in front of 'The Creator' by Damien Hirst at the White Cube in London

Canada's Prime Minister Justin Trudeau speaks during an election campaign stop in Winnipeg

Anti-government protesters form a human chain in Hong Kong

Girls dressed in "Hanfu" prepare for an event to mark the traditional Qixi festival, the Chinese equivalent of Valentine's Day, at a park in Beijing, China