Sri Lanka's air force destroyed an LTTE base in the volatile north on Friday, the military said while accusing rebels of attacking government security posts elsewhere in the north.
Air force fighter planes launched an airstrike on a Tamil Tiger base in north, an officer at the Media Center for National Security said, speaking on condition of anonymity as he is not authorised to speak to the media.
He did not give details of the damage and casualties caused by the attack but said pilots have confirmed that the base was destroyed.
There was no immediate comment from the rebels. However, the pro-rebel Tamilnet website said warplanes bombed the rebel-held Mullaithivu area on Friday morning.
Separately on Friday, the military said two security forces troops were wounded in rebel attacks on two government security posts in the north.
In one attack, in the town of Vavuniya, suspected insurgents on Thursday night hurled a grenade at a security post staffed by Home Guards -- civilian volunteers who help security forces watch their villages.
The attack left a guard wounded, Media Center said. In a separate attack, which took place on Thursday further north in the Jaffna peninsula, a similar grenade wounded a government soldier, the official said.
Sri Lanka's two decades of civil war halted temporarily in 2002 when Norway brokered a ceasefire, but a resurgence of near-daily violence has since threatened the truce.
Over 3,500 combatants and civilians have been killed this year, according to the Defence Ministry.
The Tamil Tigers say they are fighting to create a separate homeland for Sri Lanka's 3.1 million minority ethnic Tamils, accusing the majority Sinhalese of discrimination.
Most of Sri Lanka's Tamils live in the island country's north and east.