'Frustration boils over' on Libya-Tunisia border

2 March 2011 Last updated at 09:18 ET Help

On the border of Libya and Tunisia, the number of people fleeing Libya has been growing.

The UN Secretary-General, Ban Ki-Moon, has warned that thousands of lives are at stake as refugees try to escape the unrest.

The Tunisian government says at least 80,000 people have crossed into the country from Libya in the past week, with many more expected.

The BBC's correspondent Jim Muir reports from the border.

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