Forces loyal to Libyan leader Moammar Gadhafi are fighting rebels for control of at least three cities.

Rebels and pro-government forces say fighting is underway on Saturday near the western oil port of Zawiya.

Also, pro-Gadhafi forces are pounding targets in western town of Zlitan as well as in the rebel-held city of Misrata, where medical officials say at least 30 people were killed on Friday.

Meanwhile, NATO airstrikes sent up plumes of smoke in the capital, Tripoli, on Friday, in a continuation of the Western allies' heightened effort to force Mr. Gadhafi from power.

There was no indication Mr. Gadhafi was ready to end his reign, but Turkish Prime Minister Recep Tayyip Erdogan said his government has offered him “guarantees” if he were to leave the country.

He did not specify the nature of the guarantees. But he said Turkey would help Mr. Gadhafi get to where he “would like.” Mr. Erdogan said he was still awaiting a reply from Tripoli.