Libya crisis in maps: Day by day

Sunday 3 April

For a fourth day, government troops and rebels have battled for control of the eastern oil town of Brega.

Government forces have also attacked rebels in the towns of Zintan and Yafran, to the south-west of Tripoli.

Libya's deputy foreign minister Abdelati Obeidi travelled to Athens in Greece where he held talks with the country's leader, George Papandreou. He said he was looking for a political solution to the crisis and did not believe it could be solved by military means.

Government troops are reported to be holding ground near the university in Brega, but are said to be reluctant to engage the rebels because of the risk of further air strikes.

Rebel leaders in Benghazi have appealed for new Nato air strikes, as well as weapons and military training to be provided by foreign governments.

They have acknowledged that firing in the air through lack of discipline could have provoked the air strike by Nato on their own forces on Friday.