Fighting along Libya's coast continues, with troops loyal to Gaddafi retaking the oil port of Brega.

With anti-Gaddafi fighters being forced back toward Ajdabiya, the role of NATO's air strikes has become ever more critical, as reports emerge of weapons and fighters flowing over southern borders to reinforce the Libyan leader's forces.

Al Jazeera's Laurence Lee reports from Benghazi with the latest.