Squalls tipped over the three wooden-hulled outriggers in the Guimaras Strait on Saturday as the rest of the country was battered by rains induced by seasonal southwest monsoon winds, the coastguard said.

The bodies of 14 passengers and crew were recovered, civil defence official Franco Agudo told AFP, taking the toll to 25.

Regional police chief Rene Pamuspusan also confirmed Sunday that 25 people had died, with six others still missing. He said 55 individuals were rescued.

On Sunday the state-run Philippine News Agency (PNA) released a dramatic photo of rescue divers placing two corpses, one still wearing a red life vest, on top of the only parts of one boat left above water.

The Southeast Asian archipelago nation has a poor shipping safety record, with scores dying in maritime mishaps every year, usually aboard boats that move people from one small island to another.

Sea accidents historically spike during the middle of the year, when the country is frequently hit by storms and typhoons.