Syrian rebels seized a convoy of UN peacekeepers near the Golan Heights and say they will hold them captive until President Bashar al-Assad's forces pull back from a rebel-held village that has seen heavy recent fighting.
The capture was announced in rebel videos posted online and confirmed Wednesday by the UN in New York, which said about 20 peacekeepers had been detained.
The seizure is the most direct threat to UN personnel in the nearly two-year-old uprising against Assad and Human Rights Watch said it is investigating the same brigade for past executions.
It came on the day that Britain said it would increase aid to the opposition forces and the Arab League gave a green light to member states to arm the rebels.
The regional Arab body also invited the opposition Syrian coalition to take Syria's seat at a league meeting in Doha later this month. Syria was suspended in November 2011 in response to its crackdown on protests, which have since spiraled into civil war.
The peacekeepers of the UN mission have been monitoring a ceasefire line between Syria and the Israeli-occupied Golan Heights, captured by the Jewish state in a 1967 war, for nearly four decades.
Israel has warned it will not "stand idle" as Syria's civil war spills into the Golan region.
The UN said its peacekeepers had been detained by around 30 fighters in the Golan Heights.
"The UN observers were on a regular supply mission and were stopped near Observation Post 58, which had sustained damage and was evacuated this past weekend following heavy combat in close proximity at Al Jamla," it said, referring to a village at the heart of fierce confrontations Sunday.
It did not say the nationality of the observers but the Syrian Observatory for Human Rights monitoring group, which is in contact with the rebel brigade, said they were Filipino.
In one rebel video, a young man saying he was from the "Martyrs of Yarmouk" brigade stood surrounded by several rebel fighters with assault rifles in front of a two white armored vehicles and a truck with "UN" markings.
"The command of the Martyrs of Yarmouk … is holding forces of the United Nations Disengagement Observer Force until the withdrawal of forces of the regime of Bashar al-Assad from the outskirts of the village of Jamla," the man, who was wearing civilian clothes, said.
At least five people could be seen sitting in the vehicles wearing UN light blue helmets and bulletproof vests.
"If no withdrawal is made within 24 hours we will treat them as prisoners," he said, accusing them of collaborating with Assad's forces to push the rebels out of Jamla.
Nearly two years since the uprising started, rebels are distrustful of the UN, which they say has failed to support their cause.
Military aid
Earlier on Wednesday the UN said the number of refugees who have fled Syria had reached 1 million, part of an accelerating exodus from a conflict with no prospect of an end to the bloodshed.
British Foreign Secretary William Hague, pledging support for Assad's opponents, said the civil war had reached catastrophic proportions and that international efforts to stem the violence had been an abject failure.
Senior US and Russian diplomats will discuss the conflict at a meeting in London on Thursday, Russia said.
But Hague said the chances of getting an immediate political solution to the crisis were slim and that diplomacy was taking too long. However, he played down the prospect of direct Western military intervention.
"If a political solution to the crisis in Syria is not found and the conflict continues, we and the rest of the European Union will have to be ready to move further and we should not rule out any option for saving lives," he said.
A Syrian rebel leader sought to persuade European governments to lift an arms embargo for the rebels, saying any weapons provided would be accounted for and possibly returned.
Brigadier Selim Idris said in Brussels that Syrian rebels recorded the arms they received.
"The weapons are registered on lists with numbers on each weapon. We distribute those weapons. And we know precisely whom has received them," he told a news conference.
Refugee exodus
At a registration center for Syrians in the northern Lebanese city of Tripoli, a 19-year-old mother of two registered on Wednesday as the millionth refugee to flee her country.
"The situation is very bad for us. We can't find work," said the teenage mother, wearing a green headscarf and holding her daughter as she spoke to reporters.
"I live with 20 people in one room. We can't find any other house as it is too expensive. We want to return to Syria. We wish for the crisis to be resolved."
Syrians started trickling out of the country when Assad's forces shot at pro-democracy protests inspired by Arab revolts elsewhere.
The uprising has since turned into an increasingly sectarian struggle between armed rebels and government soldiers and militias. An estimated 70,000 people have been killed.
Around half the refugees are children, most of them aged under 11, and the numbers leaving are mounting every week, the UN refugee agency said in statement.
"With a million people in flight, millions more displaced internally, and thousands of people continuing to cross the border every day, Syria is spiraling towards full-scale disaster," UN High Commissioner for Refugees Antonio Guterres said in a statement.
