A head-on collision between a coach and lorry in Morocco has killed 31 people, many of them young athletes, officials told the BBC.

Nine are said to have been injured near the southern city of Tan Tan.

Many of the victims were killed by a fire which broke out on the coach following the crash, local media said.

The accident is said to have happened on the road between the capital, Rabat, and Laayoune, which is in the Western Sahara.