A gas explosion at a coal mine in the town of Sabinas, Coahuila, Mexico, has left 14 workers trapped.

According to officials the blast occurred in the early hours of Tuesday morning at a depth of 60m, but it is not clear whether there were any fatalities.

Sabinas mayor Jesus Maria Montemayor Garza said a 15-year old miner who was on the surface at the time lost an arm as a result of the explosion.

Rescue workers could not enter the mine due to the presence of methane gas.

The mine is owned by Asociacion de Carboneros BINSA, according to local media.