China explosions: The moment of the Tianjin blast

Massive explosions have hit China's northern city of Tianjin, killing at least 50 and injuring 500 people.

According to Chinese state media, the blasts occurred when a shipment of explosives blew up in the port city at about 23:30 (16:30 GMT).

Pictures and video shared on social media showed flames lighting up the sky and damage to nearby buildings.