The United Nations has ordered the end of its observer mission in Syria, and said that it would withdraw its staff within the next few days.
"The conditions to continue UNSMIS were not fulfilled," said Gerard Araud, France's ambassador to the UN, referring to the mission by its acronym.
Edmond Mulet, from the UN peacekeeping department, told reporters that the mission would "come to an end" at midnight on Sunday.
Earlier this year, the United Nations authorised sending up to 300 unarmed military observers to Syria to monitor a ceasefire that UN-Arab League envoy Kofi Annan negotiated with president Bashar al-Assad.
But hostilities have only worsened since then, and the UN mission suspended its patrols on June 15, leaving the observers largely confined to their hotels.
As of Thursday, the number had been cut to 101 observers and 72 civilian staff. Mulet said the last observer would leave Damascus on Friday next week.
Brahimi 'accepts' mediator role
The Security Council did back a plan by UN secretary-general Ban Ki-moon to start a political liaison office in Damascus to monitor events.
Mulet told reporters it would probably be between 20 and 30 people, with political, humanitarian and military experts taking part. He added that Assad had approved setting up the office.
|Deputy commander of the Free Syrian Army tells Al Jazeera the country 'needs world's help right now'
Vitaly Churkin, the Russian ambassador at the UN, said an action group will meet on Friday to call for an end to the violence. Russia did not want to wind down the monitoring mission.
"We believe that those members of the council who insisted that the UNSMIS can't continue did not really show a commitment to ending hostilities," Churkin said.
Veteran Algerian diplomat Lakhdar Brahimi has agreed in principle to replace Annan as the international mediator on Syria, UN sources said on Thursday.
Annan is stepping down at the end of August after six months in the post because he said his Syria peace plan was hampered by a divided and deadlocked UN Security Council.
Diplomats told the Reuters news agency on condition of anonymity that Brahimi, who has previously served in Afghanistan and Iraq, had been undecided for days about whether to accept the offer of the post from Ban, did not want to be seen as a mere replacement of Annan but wanted an altered title and mandate.
It was not clear when the official announcement would be made, envoys said.
Dozens dead near Aleppo
Some of the worst recent violence came in the rebel-controlled town of Azaz, about 45km north of Aleppo, where air attacks by the Syrian government killed at least 30 people. Researchers from Human Rights Watch put the death toll higher, at more than 40, with more than 100 wounded.
In-depth coverage of escalating violence across Syria
Witnesses and Free Syrian Army (FSA) forces who reinforced security around the town after the raids said the jet fired twice, targeting a makeshift media centre used by foreign reporters in the second, smaller attack.
Most of the injured from Wednesday's attack were driven directly to the Turkish border, 6km north.
Dozens of people, many wailing and shouting, were climbing over the rubble, trying to pull out victims.
"That's it, I'm leaving for Turkey with my family today. Life here is impossible," a witness, who gave his name as Jomaa, said. "If you come to the basement of my house now, there are 15 women who are afraid to go out. This is what Bashar does to us."
The bombings did not appear to hit specific rebel targets, though one of the sites was about 1km away from the local rebels' political and media offices.
"Bashar did this. God help us, these animals will kill us all," said one man, hoisting a bloodied arm that had been piled up on the pavement outside the hospital in Azaz after the bombardment.