Libya (and Beyond) LiveBlog: Qaddafi Son, 3 Grandsons Reportedly Killed in Airstrike

2150 GMT: Back to the start of our busy Sunday --- Libyan State TV has shown footage of what it claims is the body of leader Muammar Qaddafi's son Seif al-Arab, reportedly killed by a NATO airstrike:

2140 GMT: Activists, residents, and a prominent lawyer have said that Syrian authorities are rounding up busloads of young men in the occupied city of Daraa.

"They are arresting all males above 15 years. They only have old security tactics and they are acting on revenge," said the lawyer. "Bullets are their response to the people's revolt. The security forces who came to Deraa told us 'Go buy bread from a bakery called Freedom. Let's see if it feeds you.'"

A witness said those seized were being gathered in schools and then transferred to detention centres.

Tonight in Homs, security forces reportedly opened fire on about 600 protesters in Homs near the Khalidiyyeh Mosque in the centre of the city, an eyewitness told Al Jazeera.

A further 700 protesters had gathered on the road to Fairouzeh village in the suburbs of Homs, also chanting for the toppling of the regime.

2120 GMT: Among the security measures in Syria reported today....

Syrian forces arrested prominent human rights lawyer Abdallah Khalil in the city of Raqqa after he criticised the reaction to protests. Two opposition figures, Abdelqader al-Khaznawi and Abdelsamad Ali, who called for pro-democracy demonstrations in the northeastern city of Qamishli were detained.

Authorities shut down al mobile phone services, landlines, and the internet in the northeastern town of Qamishli and surrounding village. On Saturday, secret police arrested Imam Abdel Samad Ali from the Kasmo Mosque, apparently over his Friday sermon condemning the siege of the southern town of Deraa and supporting anti-regime protesters in the northeast.

All mobile phone networks, land lines, and the internet were also reportedly cut to Darraya, a suburb of Damascus. Tanks are surrounding the area, and checkpoints have been in place since Friday on all roads.

The army has left the coastal city of Baniyas has left, according to an eyewitness, apart from a few areas around the oil refinery, electricity station and the southern entrance to the port. However, more than 700 pro-regime supporters reportedly threatened a group of around 200 opposition protesters on Sunday.

2115 GMT: Catching up with Syria, where protests continued today despite regime efforts to prevent gatherings --- claimed clips from Aleppo and Moadamiya near Damascus:

1805 GMT: More fighting on the western border of Libya, with regime trying to break through the border crossing into Tunisia and attacking the opposition-held town of Zintan, firing Grad rockets in the assault.

An opposition spokesman said NATO airstrikes hit regime positions near Zintan.

State TV claimed that the regime shelled the opposition-held port at Misurata, 210 km (130 miles) east of Tripoli, to stop NATO from delivering weapons to insurgents: "NATO tried today (Sunday) to breach the blockade imposed by the Libyan armed forces on Misrata's port. The alliance also tried to deliver arms shipments and supplies to the armed criminal gangs using several naval vessels. But it came under heavy bombardment which forced it to flee to the sea."

1800 GMT: EA returns from a Sunday break to find these developments in Libya....

Pro-regime crowds have attacked embassies in Tripoli, destroying the British residence and sending smoke aloft from the Italian compound.

The United Nations has evacuated 12 personnel from Libya because of the unrest.

Britain has given the Libyan Ambassador 24 hours to leave the country. Foreign Secretary William Hague said, "The Vienna Convention requires the Qaddafi regime to protect diplomatic missions in Tripoli. By failing to do so that regime has once again breached its international responsibilities and obligations."

1040 GMT: The signing ceremony for a deal to end Yemen's political crisis has been delayed.

President Saleh refused to accept the transition of power, brokered by the six-nation Gulf Co-operation Council. Yemen's opposition also said they will not go to Riyadh in Saudi Arabia, where they had been expected to join GCC foreign ministers to sign the deal.

Abdul-Latif al-Zayyani, the Secretary-General of the GCC, indicated that Saleh had pulled out of the talks as he left the Yemeni capital Sanaa on Saturday: "Four sessions of talks were held to convince him, and every time he came up with a new condition."

Under the GCC plan, Saleh would hand over power in 30 days to his Vice President in exchange for immunity from prosecution for him and his family.

0905 GMT: A resident in occupied Daraa in Syira has said, "Heavy gunfire has stopped, no tank shelling today. Security forces conducting door-to-door searches."

0655 GMT: A witness  in the occupied Syrian city of Daraa has told Reuters that women and children chanted "Allahu Akhbar (God is Great) against the tyrant" from rooftops overnight.

0600 GMT: A video is circulating which claims to be of a Syrian soldier who has defected.

0550 GMT: The statement by Lieutenant-General Charles Bouchard, Commander of NATO’s operations, on the airstrike which allegedly killed the youngest son and three grandsons of Libyan leader Muammar Qaddafi:

All NATO’s targets are military in nature and have been clearly linked to the Qadhafi regime’s systematic attacks on the Libyan population and populated areas. We do not target individuals. The strike was part of NATO’s coherent strategy to disrupt and destroy the command and control of those forces which have been attacking civilians.

I am aware of unconfirmed media reports that some of Qadhafi’s family members may have been killed. We regret all loss of life, especially the innocent civilians being harmed as a result of the ongoing conflict. NATO is fulfilling its UN mandate to stop and prevent attacks against civilians with precision and care --- unlike Qaddafi’s forces, which are causing so much suffering.

0535 GMT: Libyan regime spokesman Moussa Ibrahim said on Saturday night that a NATO airstrike had killed Seif al-Arab Qaddafi, the youngest son of the Libyan leader and three of Muammar Qaddafi's grandsons.

0525 GMT: The Syrian Centre for the Defence of Prisoners of Conscience asserts that Syrian security forces have detained two veteran human rights activists: Hassan Abdel Azim, 81, of the National Democratic Grouping, and Omar Qashash, 85, of the People's Democratic Party.

Activists also claim the arrests of 10 of 50 women taking part in a rally of about 50 women in the centre of Damascus, in a shopping area near the Parliament, in support of the occupied town of Daraa:

0520 GMT: The Secretary-General of NATO, Anders Fogh Rasmussen, has rejected Libyan leader Muammar Qaddafi's call for negotiations: “The Qaddafi regime continues to cause widespread suffering through its attacks on the Libyan population. Quite simply, this must stop. NATO remains firm --- we will continue our operation until the threat to the civilian population of Libya is removed.”

0510 GMT: An opposition website summarises developments in Misurata, Libya's third-largest city, on Sunday. It claims the main battle was in the east of the city, including the airport: "Freedom fighters managed to push Qaddafi forces back and they are now further away from the city on the eastern coastal road. However, quite a few freedom fighters died there.”

After the airport battle, the website says regime forces resumed bombardment of the city centre "with mortars, GRAD missiles and cluster bombs”.

The report concludes, “Misurata still lacks the most basic humanitarian needs (water, food, medicine, working sewage systems, phone networks)."

0500 GMT: We begin this morning with more claimed video from Saturday's demonstrations in Syria, beginning including footage of a candle-lit march in Baniyas on the coast: