TRIPOLI, Libya – Heavy fighting raged anew in Misrata and killed 24 people Saturday as Moammar Gadhafi’s forces gave up more ground inside Libya’s third-largest city. The U.S. said its first Predator drone attack in the country destroyed a government rocket launcher that had menaced civilians in the western city.

Libya’s deputy foreign minister, Khaled Kaim, said troops have halted operations in Misrata to enable tribal elders to negotiate with the rebels. If the rebels don’t surrender in the next two days, armed tribesmen will fight them in place of the army, he said.

Hundreds of people have been killed in rebel-held Misrata in a two-month government siege backed by tanks, mortars and snipers.

The opposition was skeptical of claims that the army would step aside.

“Gadhafi forces are moving back,” said Safi Eddin al-Montaser, a rebel spokesman in Misrata. But he added: “People are still nervous because we don’t know the next step of Gadhafi’s forces.”

Jalal el-Gallal, a spokesman for the rebels’ leadership council in their stronghold of Benghazi, said he doubted the regime will fully withdraw from Misrata. He claimed the rebels firmly control the city.

Misrata, western Libya’s only major rebel stronghold, has become the most dramatic battleground in the Libyan uprising, which began in February after similar revolts in Tunisia and Egypt ousted longtime leaders. Fighting elsewhere in the country is at a stalemate, even with NATO airstrikes that began last month.

Residents reported heavy fighting, shelling and explosions in the east and south of Misrata and doctors said the day was one of the bloodiest in weeks. At least 24 people were killed, said a doctor at a Misrata hospital who asked to be identified only by his first name because he was afraid of government retribution.

Pro-Gadhafi troops in central Misrata – including snipers who had terrorized residents for days atop an eight-story building – were either flushed out or withdrew in the last two days in what the rebels considered a victory. That enabled some people to venture out into the battle-scarred streets and allowed fighters to set up new checkpoints at the entrance to the city and along some blocks.

There was no sign of celebrations in the streets. Traffic had returned and there were long lines for bread and gasoline, signs of the distress that the long siege has caused in the city.

“People are very happy,” al-Montaser added. “It feels like a victory, but they will feel happier when all of Misrata and Libya is free.”

Kaim, the Libyan official, said the army has not pulled out of Misrata, but insisted it stopped operations there, starting Friday. He said the move came in response to pressure from tribal leaders who want life in the city to return to normal, he said.

NATO said a U.S. Predator drone destroyed a multiple rocket launcher Saturday in the Misrata area that was being used against civilians. The Pentagon said it was the first attack carried out in Libya by one of the drones, which began flying missions in the country Thursday.

President Obama approved the use of armed Predator drones to improve the precision of strikes on Libyan government forces. Predators had previously been used in Libya only for surveillance. The low-flying Predators have been used in Pakistan to kill militants and are suited for urban combat.