Large numbers of civilians are reported to be fleeing Kilinochchi in the face of more air force attacks.
Although Kilinochchi was the centre of the LTTE administration, most offices have fled the town along with the civilians as the infrastructure came under attack.
The Sri Lanka Air Force last Thursday attacked the Head Office of the Political Section of the Liberation Tigers of Tamil Eelam and the LTTE Peace Secretariat, both located close to each other at the heart of the Kilinochchi town.
The attack also caused damage to nearby houses and the roads.
"Jets engaged the LTTE's main headquarters in Kilinochchi," air force spokesman Wing Commander Janaka Nanayakkara said.
Two civilians were killed and five wounded in the air-strike. Two of the wounded were identified as Subbiah Sivalingam, 48 and Thangkavel Ragu, 30, both travellers on the road while the attack took place. The other victims are yet to be identified.
At least one of the civilians killed was at his house in the vicinity.
A local resident undergoing treatment in Kilinochchi's hospital said the situation there was very tense.
"In the morning we heard a big noise of the fighter aircraft... in the late afternoon there was another air attack," he said.
"We are very scared. Once the doctor comes and takes off the bandages, I am planning to get out of this place."
The Sri Lankan government is urging people to move out from the Vanni region to government controlled areas.
But the hospital patient said that was not an option.
"There is no road. There is no public transport to (government-controlled) Vavuniya, we cannot go there."
Another resident told the BBC nearly everyone had left Kilinochchi town.
"Some people are paying 10,000 to 15,000 rupees ($90-135) to hire lorries and move out.
"But many people don't have that money and are moving out on bicycles or auto rickshaws. They are taking very little with them.
"All the shops and hotels are closed," he said. "People are living under trees. They don't even have a mat to sleep on. There is no electricity."
Meanwhile, the Sri Lanka Air Force continued its targeting of key civilian infrastructure, bombing damaged a key sluice transporting water to thousands of acres of agricultural lands in Vanni.
The sluice at Paravippaagnchaan, located east of the A9 road, channels water from Paravippaagnchaan tank to agricultural lands in Paranthan, north of Kilinochchi.
The tank gains water from the rainfalls and from Kilinochchi and Iranaimadu tanks.
The destruction would cause flooding. 3 huts belonging to IDPs and a small shop were completely destroyed and 12 houses sustained damage.
SLAF bombers also dropped bombs in the vicinity of the UNICEF office located at Kaneasapuram in Kilinochchi and the Centre for Women's Development and Rehabilitation (CWDR) was also heavily damaged in the air strike.
Two local employees of the UNICEF, who were inside the office, narrowly escaped as the roof of the building was shaken by a bomb that hit the fence of the office.
Neighbouring house sustained heavy damage in the attack.
At Kaneasapuram, seven houses in the vicinity of the UNICEF office were damaged.
The SLAF bombers also attacked a civilian settlement near Vettimanai, a counselling aid center for mentally ill women, causing tension and panic among the few patients who were being transferred from the centre at Kanakapuram. .
The SLAF bombers disappeared from the sky as they came under LTTE anti-aircraft fire. However, the buildings have sustained heavy damage.
Relentless daily air strikes are accompanying a ground push into Kilinochchi and other LTTE-controlled areas across the front that spans the north of the
The government's top civil servant, or government agent, in Kilinochchi district, Nagalingam Vedanayagan, confirmed that there were more attacks on Kilinochchi town on Friday.
"Shelling and other attacks are taking place in Kilinochchi," he told the BBC Tamil service.
"To escape the fighting people are moving towards the east. Most of them have been moving out."
