The wounded homeguard, Faleel, is admitted at the Muttur hospital.
Meanwhile Sri Lanka Army (SLA) soldiers and Police conducted a cordon and search operation in the Anpuvalipuram area, about 2 km. west of Trincomalee town this morning. It is not known if any arrests were made.
Police sources said they found a bomb during the combine search operation, and it was latter defused.
According SLA sources a military trained policeman was killed and four wounded when the Liberation Tigers attacked the police post at Anpuvalipuram junction last night.
A ten-foot tall police watch-tower at the junction, near the 'Peace Arch', was destroyed during the attack. Police said the watch-tower collapsed when a time bomb exploded.