Syrians in the restive region of Homs performed special prayers for a major Muslim holiday to the sound of explosions and gunfire as government troops pushed forward their assault on the area, killing at least 11 people Sunday, residents and activists said.

The violence on the first day of Eid al-Adha, or Feast of the Sacrifice, added to fears that a peace plan brokered by the Arab League last week was unraveling and prompted Qatar's prime minister to call for an emergency meeting Saturday to discuss the Syrian government's failure to abide by its commitments.

Egypt's official news agency MENA reported that Sheik Hamad Bin Jassem Bin Jabr Al Thani called for the meeting "in light of the continuing acts of violence and the Syrian government's noncompliance" with the terms of the Arab plan.

Violence has continued unabated, though Damascus agreed to halt its crackdown on the seven-month-old uprising that the UN says has left some 3,000 people dead.

Explosions shook mosques

"It is a very painful situation here in Homs," said a city resident reached by telephone and speaking on condition of anonymity for fear of government reprisals. "The holiday will come for us only when we are free from this regime."

Activists said government forces on Sunday killed at least nine people in Homs, which has turned into one of the main centres of protest and reprisal during the revolt against President Bashar Assad.

Bloodshed linked to the military crackdown on dissent and what appear to be sectarian revenge killings have engulfed Homs in recent weeks, killing scores of people in the country's third-largest city.

A mobile phone photo from a citizen journalist shows Syrian protesters demonstrating against President Bashar Assad's regime at Mreidekh village in Edlib province, northern Syria, on Sunday. Associated Press

The British-based Syrian Observatory for Human Rights said troops killed one person in the city of Hama during raids there and another in the northern Idlib province.

Majd Amer, a local Homs activist, said people performed morning prayers to the sound of explosions that sometimes shook the mosques.

Gunfire in Damascus

"Nobody can tell what the explosions are, it's been like this for days now," he said of the ongoing military assault on the city. He said the shooting did not stop people from holding brief protests after emerging from the city's mosques Sunday, shouting for the downfall of the regime. There were no casualties from the protests in Homs.

Elsewhere, troops fired live ammunition to disperse protesters near Damascus and in the country's north as worshippers emerged from prayers to stage protests calling for Assad's ouster. There were no immediate reports of deaths but activists said several people were wounded in the northern province of Idlib.

Assad, who is trying to fend off the greatest challenge his family's 40-year-old regime, held Eid prayers at the al-Nour Mosque in the northern town of Raqqa, according to the official SANA news agency.

The location marked a divergence from the past few years when Assad held prayers in the capital Damascus. The choice of Raqqa, which has seen some anti-government protests, appeared to be an attempt by the regime to show it remains in control there.

The Observatory said security forces conducted raids in Raqqa after Eid prayers.

Violence continues despite Arab League plan

The government has pushed ahead with its bloody offensive against protesters despite the peace plan brokered by the Arab League on Wednesday in which Damascus agreed to halt its crackdown and start a dialogue with the opposition.

The head of the opposition Syrian National Council, Burhan Ghalioun, addressed the Syrian people on Saturday evening, pledging not to be deceived by Assad's promises or overtures to hold dialogue.

"We will not negotiate on the blood of the victims and martyrs … we will not be deceived. The National Council will not allow the regime to bide for time," he said in a televised speech broadcast on the pan-Arab Al-Jazeera satellite channel.

The head of the Arab League, Nabil Elaraby, has warned that the failure of the plan would have disastrous consequences. On Saturday, he expressed "deep worries and regret for the continuation of violence all around Syria" despite the deal announced at the Arab League's headquarters in Cairo.

Regime opponents skeptical of the government's motives have continued to stage protests to test the government's sincerity, and have been met by gunfire. At least 15 people were killed on Friday, and activists reported tanks were shelling Homs a day later.

Under the Arab plan, Syria's government also agreed to pull tanks and armoured vehicles out of cities, release political prisoners and allow journalists and rights groups into the country.