As part of the on-going military operations, telephone links with Kilinochchi, the headquarters of the LTTE, have been cut.
The town is currently without electricity too.
The cutting of the phone lines on Thursday, has adversely affected news gathering by media organisations based in Colombo and Jaffna.
In Jaffna, fixed lines are still working, but mobile phones are dead.
Meanwhile, the pro-LTTE Tamilnet website quoted the LTTE's military spokesman, Rasaiah Ilathirayan, as saying that heavy fighting had broken out in the Muhamalai area south of Jaffna on Saturday, with the Sri Lankan forces trying to consolidate their positions in the Forward Defense Line (FDL).
The Sri Lankan army, however, down played the operations.
Sources in Jaffna told Hindustan Times that there was no sound of heavy artillery or rocket fire on Saturday.
But agency reports said that 20 servicemen were killed and 53 were injured in the fighting on Saturday.
Tamil sources said that the army was on the move to capture Elephant Pass, which divides the LTTE-held Wanni from the Jaffna peninsula.
The Sri Lankan Air Force had bombed Palai, north of Elephant Pass.