Six killed in Mexican cargo train crash - RTE.ie

Mr Burelo said it would be difficult to determine the total number of people aboard the train at the time of the pre-dawn accident.

"It's very likely that (surviving travellers) have left the scene."

A spokesman for Tabasco state government said the death toll had risen to six, with 22 injured.

He said 16 people were being treated in hospitals in nearby Choapas, Veracruz.

There were different reports of numbers injured. Luis Felipe Puente, national emergency service coordinator, said on Twitter that 35 people were injured, 16 seriously.

Migrants often jump aboard "La Bestia" under cover of darkness. At times, several hundred migrants have been found on the train, either in freight cars or sitting on top.

Mexico's foreign ministry said it was helping Central American embassies whose citizens were affected by the crash.