At least 13 people have been killed by a tornado that hit the northern Mexico border city of Ciudad Acuna.

Hundreds of homes have been damaged or destroyed in the city, in Coahuila state, just across the border from Del Rio, Texas.

The US state has seen severe flooding, with four killed and a dozen missing.

Images from Mexico showed cars and buildings badly damaged. Many people have been injured and there are fears the death toll could rise.

Coahuila Governor Ruben Moreira, on a visit to the stricken area, said 10 adults and three children had died and a baby was missing. Another 150 people had been taken to hospital, he said.

The authorities say that more than 1,000 homes have been damaged by the storm.

At one point the tornado reached a speed of 270-300km/h (168-186mph). Most of those who died were walking on the street when it struck, officials said.

(BBC)