Tripoli, Libya (CNN) - Libya's army will withdraw from the besieged coastal city of Misrata and allow tribal leaders to attempt to deal with the rebels, Libyan Deputy Foreign Minister Khaled Khaim said Friday in Tripoli.

Meanwhile, NATO airstrikes resumed early Saturday in Tripoli.

"The situation in Misrata will be eased and will be dealt with by the tribes surrounding Misrata," Khaim told reporters. "You will see how they will be swift and quick and fast."

He added that the residents of Libya's third-largest city have been in the grip of the conflict.

"The tactic of the Libyan army is to have a surgical solution, but it doesn't work," Khaim said. "With the airstrikes, it does not work. We will leave it for the tribes and Misrata people to deal with the situation - either to use force or negotiations."

He added, "The tribal leaders have issued an ultimatum to the military saying they will deal with the situation if the military cannot do it. ... They will speak with the rebels and, if there is no solution, they will fight the rebels."

In the rebel stronghold of Benghazi, in the east, rebel spokesman Ahmed Bani reacted with laughter and derision.

"This only confirms that he wants to save face," Bani said of Libyan leader Moammar Gadhafi. "This confirms that our rebels in Misrata have liberated Misrata and that Libya is still in one piece, not two, the way Gadhafi hoped. In regards to the tribes fighting the rebels; how would you believe that a person will fight his brother? And who are the tribes that are supporting Gadhafi, anyway?"

He predicted that, if Gadhafi forces leave Misrata, "it will mean that this game is over." But he added that he did not necessarily believe they will.

The announcement came after Bani said that Libyan rebels had wrested control of a key building in Misrata and made other advances in the city.

"This victory is quite important for us, and it shows that we are advancing and we are heading in the right direction," Bani told CNN about the rebels' control of the National Insurance Building, which is on the main thoroughfare, Tripoli Street. Its height provided snipers with a clear view of surrounding streets.

Bani said some fighters loyal to Gadhafi were negotiating to surrender their weapons to the rebels in exchange for the rebels' assurances that they would not be harmed.

But the carnage of recent days was on display at the city's hospitals, where doctors were working long hours and beds were full.

(CNN) - Violence swept across Syria on Friday, with at least 43 people reported killed in another bloody day of confrontation between government forces and demonstrators calling for political change.

Reliable numbers were difficult to come by. CNN bases its figures on reports from witnesses. Amnesty International, citing local human rights activists, reported that at least 75 people were killed in Friday's protests. The Syrian government does not permit CNN to report from inside the country.

The killings occurred in several flashpoint regions as thousands of Syrian protesters defiantly marched after Muslims' weekly prayers in a display of mass discontent toward the government.

Violence ripped through the Damascus suburbs of Douma, Moademy, and Zamalka, and other cities - Homs, Harasta, and Izraa. The state-run news agency reported demonstrations and clashes, citing injuries but no deaths.

Human rights groups and witnesses told a different story. "Today, they have killed so many people. There are so many people injured and people have been kidnapped," Wissam Tarif, a human rights activist, told CNN. "They are acting as an armed gang, not as security forces."

The violence prompted international condemnation, with British Foreign Secretary William Hague calling the killings "unacceptable," and calling on Syrian security forces "to exercise restraint instead of repression, and on the Syrian authorities to respect the Syrian people's right to peaceful protest."

Before Friday's marches, Amnesty International and Human Rights Watch said the death toll had exceeded 200 since the demonstrations began in mid-March.

Human rights groups had been urging the government to refrain from cracking down on peaceful turnouts during the Facebook-inspired outpouring dubbed "Great Friday."

A witness in Douma said eight people died and approximately 25 were wounded when security forces fired on several thousand protesters. Riot police and secret police comprised the security forces and a sniper on a hospital roof was seen taking shots at people. Pellets and lethal rounds were used, the witness said, as people chanted for the downfall of the regime.

A doctor in the Damascus suburb of Moadamy said six people were killed and dozens wounded when security forces fired in an "indiscriminate and disproportionate manner" on thousands of demonstrators. The doctor, a pediatrician, said it was difficult taking the wounded to the hospital. Syrian security forces had set up checkpoints across the area and were preventing anyone from entering or leaving the suburb.

Five people were killed in the Damascus suburb of Zamalka, a witness said.

An opposition leader in Homs said 12 people died and dozens were wounded when security forces fired on demonstrators. Protesters raced from the main streets for cover in smaller streets and alleys where they waited for the situation to calm. A witness said one of the dead was a 41-year-old demonstrator who was shot in the neck.

Tarif said security forces fired on demonstrators from the southern city of Izraa who were trying to join protesters in nearby Daraa, killing nine and wounding others. Two people in Izraa reported seeing an assault on demonstrators and many casualties.

An activist in Harasta in the south said 2,000 to 3,000 people met with a fierce crackdown by security forces, and heavy gunfire could be heard over the phone as the witness spoke. Three people have been killed and nine wounded, the source said. In protest, demonstrators burned down a police station.