The US has said the UN should consider more than just a no-fly zone over Libya, amid Security Council division on a draft resolution.
US ambassador Susan Rice said a no-fly zone would only bring limited help. She hoped for an early vote on a draft.
Russia expressed concern at some of the implications of the proposals and put forward a counter-resolution.
Forces loyal to Col Gaddafi are taking ground from rebels, who say they fear “genocide” without swift UN action.