Libya revolt: Misrata
Pro- and anti-government forces have been battling for ground in Libya. Explore the map below to find out more about the key flashpoints.
Government troops with tanks and artillery fought their way into the rebel-held town on Saturday before being forced back. It remains in rebel hands.
UN relief co-ordinator Valerie Amos said the heavy fighting had left people "injured and dying" and they needed help "immediately".
With a population of 300,000, Misrata is the largest town controlled by rebels outside their stronghold in the eastern part of the country.