Reporter near Sri Lanka's front line

Thousands of civilians continue to pour out of Sri Lanka's war zone as they try to escape crossfire between government troops and Tamil Tigers.

The UN is sending a humanitarian team to northern Sri Lanka, where it says 50,000 people are trapped by fighting.

The BBC's Charles Haviland is travelling with the Sri Lankan army near the front line in the north east of Sri Lanka.

Footage courtesy of Sri Lanka government and Tamil TV