Baroness Amos in Benghazi

Baroness Valerie Amos, UN under-secretary for humanitarian affairs, is in Benghazi to help coordinate the flow of aid arriving into the country.

She says she asked Libyan officials to allow the UN access to the besieged city of Misurata, but Gaddafi's administration rejected a cessation of hostilities to allow civilians to move to a safer location.

She speaks to Al Jazeera from Benghazi - and we are also joined by our correspondent Jonah Hull, who visited Misurata yesterday.