The Mexican navy has rescued two Colombian and two Ecuadorean fishermen off the coast of the southern state of Chiapas.
The fishermen said they had been adrift at sea for 30 days after their boat ran out of petrol.
They said the currents carried them north from the waters off Ecuador to Mexico.
Doctors said the four were dehydrated. It is not clear what they lived off while adrift.
Navy personnel carrying out a routine night flight spotted their boat 260km (162 miles) off the coast of Chiapas.
The Mexican navy has rescued two Colombian and two Ecuadorean fishermen off the coast of the southern state of Chiapas.
The fishermen said they had been adrift at sea for 30 days after their boat ran out of petrol.
They said the currents carried them north from the waters off Ecuador to Mexico.
Doctors said the four were dehydrated. It is not clear what they lived off while adrift.
Navy personnel carrying out a routine night flight spotted their boat 260km (162 miles) off the coast of Chiapas.
BBC © 2015