BEIRUT - The head of the UN observer mission in Syria on Sunday called on President Bashar Assad and the country's opposition to stop fighting and allow a tenuous cease-fire to take hold.
Maj. Gen. Robert Mood spoke after arriving in the Syrian capital, Damascus, to take charge of an advance team of 16 UN monitors trying to salvage an international peace plan to end the country's 13-month-old crisis.
Under the plan, a cease-fire is supposed to lead to talks between Assad and the opposition on a political solution to a conflict that has killed more than 9,000 people.
On Sunday, at least 25 people were killed, including 14 civilians shot dead by troops in a village in central Syria, and three soldiers killed in a clash with army defectors, activists said.
Mood told reporters that the 300 observers the UN has authorized for the mission "cannot solve all the problems" in Syria, asking for co-operation from forces loyal to Assad as well as rebels seeking to end his rule.
"We want to have combined efforts focusing on the welfare of the Syrian people," he said, "true cessation of violence in all its forms."
The cease-fire began unraveling almost as soon as it went into effect April 12. The regime has kept up its attacks on opposition strongholds, while rebel fighters have continued to ambush government security forces. Defying a major truce provision, the Syrian military has failed to withdraw tanks and soldiers from city streets.
Despite the violence, the truce still enjoys the support of the international community, largely because it views the plan as the last chance to prevent the country from falling into civil war -- and because it does not want to intervene militarily.
Jakob Kellenberger, president of the International Committee of the Red Cross, said that while he is still hopeful, "unfortunately, I am also aware how much this plan is at risk."
"That's why it's especially important for this mission to expand quickly," Kellenberger told the Swiss newspaper Der Sonntag. He met with Syrian leaders earlier this month.
Most analysts say the plan has little chance of succeeding, though it could temporarily bring down the level of daily violence.
That has largely been the case in Homs, Syria's third largest city, which has emerged as the heart of the uprising. Regime forces pounded parts of Homs for months, leaving large swaths of the city in ruins, before two U.N. monitors moved into an upscale hotel there last week.
Since then, the level of violence has dropped, although gunbattles still frequently break out. "The shooting has not stopped in Homs," local activist Tarek Badrakhan said Sunday.
An amateur video posted online Saturday showed the observers walking through a heavily damaged neighbourhood, where residents collected a body lying in the street and put it in the back of a pickup truck.
Mood, a Norwegian, was appointed head of the observer mission by UN chief Ban Ki-moon. One hundred monitors should be in the country by mid-May, said mission spokesman Neeraj Singh. It is unclear when or if the full contingent of 300 monitors will deploy to Syria.
Mood brings a wealth of Middle East experience to the job, including stints with UN peacekeepers in Lebanon in 1989-1990 and as the head of a UN peacekeeping mission known as UNTSO from 2009 to 2011. That mission was the UN's first-ever peacekeeping operation, starting after the 1948 Arab-Israeli war to monitor a cease-fire. It now watches cease-fires around the Middle East.
The Syrian state news agency said observers visited the embattled Homs neighbourhood of Khaldiyeh on Sunday but provided no further information.
The Britain-based Syrian Observatory for Human Rights, an activist group, said government snipers shot and killed two people in the neighbourhood of Joret al-Shayah, which borders Khaldiyeh.
The group said an additional 20 people were killed by troops, including 14 in the village of Hamadi Omar in the central Hama province and a child in the southern province of Deir el-Zour. Also Sunday, three Syrian soldiers were killed in clashes with army defectors, it said.
Ban has blamed the regime for widespread violations of the truce -- prompting Syria to fire back that his comments were "outrageous" and accuse him of bias.
The spat has further stoked concerns among the Syrian opposition and its Western supporters that Assad is merely playing for time to avoid compliance with a plan that -- if fully implemented -- would likely sweep him out of office.