Mexico, (Reuters): At least 24 people were killed while nine others were injured on Thursday in a head-on collision between a bus and a fuel tanker truck in southwestern Mexico, which exploded, seriously burning some of the victims, authorities said.

An official for federal police in Petacalco said, just inside Guerrero state where it borders neighbouring Michoacan, rescue workers were still clearing the site.

The official said that some of the victims were severely burned after the two vehicles smashed into each other near the Pacific coast.

The state government of Guerrero said in a statement that nine people were injured in addition to the 24 dead.

Police said the bus was travelling to the coast when it hit the tanker, which had left the port of Lazaro Cardenas.

The official said further stated that the cause of the collision was not immediately clear.