Last Updated 2:03 p.m. ET
TRIPOLI - The embattled Libyan regime passed out guns to civilian supporters, set up checkpoints Saturday and sent armed patrols roving the terrorized capital to try to maintain control of Muammar Qaddafi's stronghold and quash dissent as rebels consolidate control elsewhere in the North African nation.
Residents of its eastern Tajoura district spread concrete blocks, large rocks and even chopped-down palm trees as makeshift barricades to prevent the SUVs filled with young men wielding automatic weapons from entering their neighborhood a hotspot of previous protests.
With tensions running high in Tripoli, scores of people in the neighborhood turned out at a funeral for a 44-year-old man killed in clashes with pro-regime forces. Anwar Algadi was killed Friday, with the cause of death listed as "a live bullet to the head," according to his brother, Mohammed.
Armed men in green armbands, along with uniformed security forces check those trying to enter the district, where graffiti that says "Qaddafi, you Jew," "Down to the dog," and "Tajoura is free" was scrawled on walls.
Outside the capital, rebels held a long swath of about half of Libya's 1,000-mile Mediterranean coastline where most of the population lives, and even captured a brigadier general and a soldier Saturday as the Libyan army tried to retake an air base east of Tripoli. The state-run news agency also said the opposition held an air defense commander and several other officers.
The reports came a day after protesters demanding Qaddafi's ouster came under a hail of bullets when pro-regime militiamen opened fire to stop the first significant anti-government marches in days in the Libyan capital.
The Libyan leader, speaking from the ramparts of a historic Tripoli fort, told supporters to prepare to defend the nation as he faced the biggest challenge to his 42-year rule, with rebels having seized control of about half of the country's coastline.
"At the suitable time, we will open the arms depot so all Libyans and tribes become armed, so that Libya becomes red with fire," Qaddafi said.
The international community stepped up its response to the bloodshed, while Americans and other foreigners were evacuated from the chaos roiling the North African nation.
Some estimates indicate more than 1,000 people have been killed in less than two weeks since the revolution began.
The U.N. Security Council began deliberations Saturday to consider an arms embargo against the Libyan government and a travel ban and asset freeze against Qaddafi, his relatives and key members of his government.
President Barack Obama signed an executive order Friday freezing assets held by Qaddafi and four of his children in the United States. The Treasury Department said the sanctions against Qaddafi, three of his sons and a daughter also apply to the Libyan government.
"Although there are those who doubt that sanctions can have an immediate impact, they send a strong message to those still around the Libyan leader that the international wagons are circling and that time and history are against his remaining in power," said CBS News foreign affairs analyst Pamela Falk.
A U.N. Security Council Resolution, combined with the condemnation and inquiry by the U.N. Human Rights Council in Geneva and a likely vote next week by the U.N. General Assembly to suspend Libya, Falk added, sends a unified message that Qaddafi has nowhere to turn.
In Tripoli, most residents remained in their homes Saturday, terrified of bands of armed men running checkpoints and patrolling the city.
A 40-year-old business owner said he had seen Qaddafi supporters enter one of the regime's Revolutionary Committee headquarters Saturday and leave with arms.
He said the regime is offering a car and money to any supporters bringing three people with them to join the effort.
"Someone from the old revolutionary committees will go with them so they'll be four," the witness said when reached by telephone from Cairo. "They'll arm them to drive around the city and terrorize people."
Other residents reported seeing trucks full of civilians with automatic rifles patrolling their neighborhoods. Many of the men are young, even teenagers, and wear green arm bands or cloths on their heads to show their affiliation to the regime, residents said. All spoke on condition of anonymity for fear of reprisals.
CBS News correspondent Kelly Cobiella, reporting from Tripoli, said it was quiet in her part of the city Saturday, but there are signs the revolt is inching closer to the capital.
In the city's suburbs, anti-government protesters tried marching for the first time in days after Friday prayers. Witnesses say government forces answered with automatic weapons, shooting from rooftops.
Tripoli, home to about a third of Libya's population of 6 million, is the center of the eroding territory that Qaddafi still controls.
Even in the Qaddafi-held pocket of northwestern Libya around Tripoli, several cities have also fallen to the rebellion. Militiamen and pro-Qaddafi troops were repelled when they launched attacks trying to take back opposition-held territory in Zawiya and Misrata in fighting that killed at least 30 people.
Qaddafi's son, Seif al-Islam, told foreign journalists invited by the government to Tripoli that there were no casualties in Tripoli and that the capital was "calm."
"Everything is peaceful," he said. "Peace is coming back to our country."
He said the regime wants negotiations with the opposition and said there were "two minor problems" in Misrata and Zawiya. There, he said, "we are dealing with terrorist people," hut he hoped to reach a peaceful settlement with them.
Most shops in Tripoli were closed and long lines formed at bakeries as people ventured out for supplies.
In the Souq al-Jomaa neighborhood, piles of ashes stood in front of a burned-out police station. Graffiti on the walls read, "Down, down with Qaddafi." Elsewhere, shattered glass and rocks littered the streets.
A law school graduate walking to his house in the Fashloum area said he had seen many people killed by snipers in recent days.
"People are panicked, they are terrified. Few leave their houses. When it gets dark, you can't walk in the streets because anybody who walks is subject to be shot to death," he said.
He said Qaddafi's use of force against protesters had turned him against the regime.
"We Libyans cannot hear that there were other Libyans killed and remain silent," he said. "Now everything he says is a lie."
In Tripoli's Green Square, where state television has shown crowds of Qaddafi supporters in recent days, armed security men in blue uniforms were stationed around the plaza. Pro-Qaddafi billboards and posters were everywhere. A burned restaurant was the only sign of the unrest.
Supporters in about 50 cars covered with Qaddafi posters drove slowly around the square, waving green flags from the windows and honking horns. A camera crew filmed the procession.
Taxi driver Nasser Mohammed was among those who had a picture of Qaddafi and a green flag on his car.
"Have you heard the speech last night?" he asked. "It was great. Libyans don't want anyone but Qaddafi. He gave us loans."
Mohammed, 25, said each family will receive 500 Libyan dinars (about $400) after the start of the protests, plus the equivalent of about $100 credit for phone service. State TV said the distribution will take place starting Sunday.
Qaddafi loyalists manned a street barricade, turning away motorists trying to enter. After turning around, the drivers were then stopped at another checkpoint, manned by armed men in uniform, who searched cars and checked IDs of drivers and passengers.
In Misrata, a resident said the opposition was still in control of the city, which was calm Saturday, with many shops open and a local committee running civic affairs.
But the opposition only held parts of the sprawling Misrata Air Base after Friday's attack by Qaddafi supporters, he added.
The troops used tanks against the rebels at the base and succeeded in retaking part of it in battles with residents and army units who had joined the uprising against Qaddafi, said a doctor and a resident wounded in the battle on the edge of opposition-held Misrata, Libya's third-largest city, about 120 miles (200 kilometers) from the capital. The doctor said 25 people were killed in fighting at the base since Thursday.
The resident said pro-Qaddafi troops captured several members of the opposition Friday and now the two sides are talking about a possible swap since the opposition also captured a soldier and a brigadier general. Libyan state TV confirmed that an army Brig. Gen. Abu Bakr Ali was captured, although it said he was "kidnapped by terrorist gangs." The state-run news agency JANA also said regime opponents held the commander of the air defense's 2nd Division and several other officers.
State-run TV reported that the website of the JANA news agency was hacked.
The opposition also held complete control of Sabratha, a town west of Tripoli famed for nearby ancient Roman ruins, with no police or any security forces associated with the Qaddafi regime, said Khalid Ahmed, a resident. He added that tribes were trying to organize a march on Tripoli, although a checkpoint outside the capital would stop anyone from entering.
"All of Libya is together," Ahmed said. "We are not far from toppling the regime."
Thousands of evacuees from Libya reached ports Saturday across the Mediterranean, with many more still trying to flee the North African nation by sea, air or land.
More than 2,800 Chinese workers landed in Heraklion on the Greek island of Crete aboard a Greek ship Saturday, while another 2,200 Chinese arrived in Valletta, the capital of Malta, on a ship from the eastern Libyan port of Benghazi.
Thousands of expatriates streamed out of Libya at the bustling Tunisian border, most of them Egyptians and Tunisians.
More than 20,000 have arrived since early this week, said Heinke Veit of the European Union Humanitarian Aid group. Food, water and medical help is available, as are facilities to contact their families.