At least 13 sailors have been killed in a mine attack on a convoy in north-western Sri Lanka, officials say. The army said a mine was detonated as a navy bus and truck passed by in Mannar district and blamed Tamil Tiger rebels. The killings would be the worst breach of the 2002 ceasefire, but on Friday the Tigers said they were not connected with the incident. On Thursday an exchange between Tiger and navy vessels off the northern coast left three sailors dead. A defence ministry official told the AFP agency the government suspected the Tigers had carried out Friday’s mine attack in Pesalai, 220km (135 miles) north of the capital, Colombo.Full Story