A strong earthquake has just struck off the coast of the Indonesian island of Sumatra.
The U.S. Geological Survey says the quake, with an epicentre 20 km off Padang, had a magnitude of 7.9.
According to eyewitnesses, the quake has damaged houses and bridges, and caused fires in the city of Padang.
The Indonesian meteorology agency has issued no tsunami warning.
Strong quake hits off Indonesia