By Dumeetha Luthra
BBC News, Jaffna
At least 150 people have fled the village of Allaipiddy in the northern Sri Lankan peninsula of Jaffna.
People are fleeing from the village following last week's killing
It follows last weekend's murder of 13 Tamil civilians. The navy has been accused of the killings - they deny it.
Police and international truce monitors have both launched investigations into the incident.
The killings came only two days after Tamil Tiger rebels launched a suicide assault on a naval convoy in which 18 sailors died.
The attack in Allaipiddy last weekend was brutal. Thirteen people gunned down, including a four-month-old baby and a young boy.
In the village of some 800 Tamils, it has caused fear and panic. Afterwards many of the residents took refuge in the church.
Investigations are underway. Now residents are starting to leave. Posters around the town are warning people to evacuate.
But no one is able to say who is behind them. Some accuse the military, some the Tigers.
Increasingly civilians are being drawn into the bloodshed which has left almost 300 people dead since the start of April.