Four passengers have been injured in a collision between a boxship and a fast ferry in the Philippines.

The incident involving the 316-teu Ocean United (built 1993) and the 700-gt Fast Cat M11 (built 2015) occurred on Thursday evening off Lauis Ledge in Talisay City, the country's coast guard said.

The ferry was carrying about 70 passengers when the clash tore its roof off, the PNA news agency said.