Three people died and six others are believed to have also been killed when part of a coal mine collapsed on a remote central Philippine island on Friday.

Three people died and six others are believed to have also been killed when part of a coal mine collapsed on a remote central Philippine island on Friday, the provincial governor said.

Nine workers were using heavy machinery to remove sea water from the open-pit mine when a wall collapsed and buried the miners, Governor Rhodora Cadiao said.

Heavy rains had also reportedly drenched the area, she added.

"Nine people were buried and presumed dead. We recovered three bodies and we're looking for six more," Cadiao told radio DZBB.

Mining operations were suspended following the incident and an investigation has been launched.

The open-pit mine is on an island around four hours by boat from the central island of Antique, a fishing province in the Visayas islands, and one hour by plane from the capital Manila.

Five people were killed in a similar incident at the mine in 2013.