The fragile truce, effective from February 23, 2002, between the Sri Lankan government and the LTTE was finally shattered after the Tamil Tiger rebels blew up a Sri Lankan navy Dvora class gunboat outside Trincomalee harbour on January 5, 2006. The suicide attack was the work of an LTTE owned explosives-packed fishing boat that rammed into the naval vessel resulting in 13 sailors missing and presumed dead. Earlier, three sailors aboard a smaller naval patrol craft were killed more than two weeks ago in a sea battle with rebels off the northwestern town of Mannar.