UN World Food Programme: Libya food supplies 'under deep stress'

The situation on Libya's border with Tunisia has reached crisis point, as tens of thousands of foreigners flee unrest in the country, the UN says.

A spokeswoman for the UN High Commissioner for Refugees, said about 75,000 people had fled to Tunisia since violence began in Libya on 20 February.

The executive director of the UN's World Food Programme, Josette Sheeran has visited the border to assess the situation and told the BBC's Ben Brown that the food supply systems in Libya are "under deep stress".