Navy personnel captured six escapees from an island penal colony off Mexico's Pacific coast, authorities said Friday.

The crew of a passing boat spotted several people holding onto empty water containers and wooden planks and alerted a navy search and rescue station in Puerto Vallarta, the Navy Secretariat said in a statement.

A rescue team was dispatched to the area and plucked the six individuals out of the water at a spot some 93 kilometers (58 miles) west of that resort city.

After confirming a report of a prison break at the Islas Marias penal colony, the men were detained and taken to Puerto Vallarta for medical attention and processing.