Ten sailors have been killed and 12 others wounded in a suspected attack by Tamil Tiger rebels in northern Sri Lanka.
The country's navy said that a navy bus travelling on a main supply route exploded due to a mine attack.
Eight sailors died immediately and two more died from their injuries on the way to hospital.
The blast is the latest in a series of attacks straining a 2002 ceasefire to breaking point and raising fears of a return to civil war.
On Saturday, 15 sailors died in a suicide attack which sank a gunboat in the northeastern port district of Trincomalee.
The Tamil Tigers have threatened to resume their armed struggle unless the government gives them a separate Tamil homeland and wide political powers in the north and east, where they already run a de facto state.
The rebels say they are ready to use suicide bombers as in the past if war resumes.
