A car bomb ripped through a residential area of Syria's second city Aleppo today, as activists reported heavy clashes across the country between state forces and rebels fighting to overthrow President Bashar al-Assad.
In Aleppo, Syria's commercial hub, state news agency SANA said terrorists were behind the car bomb that killed two people and wounded 30 others when it exploded in a central area close to a state security office and a church.
Opposition activists accused the government of staging the explosion to back up its official line that foreign-backed extremists are behind the uprising.
The government says about 2,000 members of security forces have been killed in the unrest.
The explosion came a day after twin blasts killed 27 people in the capital Damascus and wounded nearly 100 others.
Aleppo had seen less unrest than much of Syria but has recently been hit with more violence as revolt spreads and becomes increasingly bloody.
The United Nations says more than 8,000 have been killed and humanitarian conditions are grim.
The semi-official news channel al-Ikhbariya said security forces had been tipped off about the bomb in Aleppo and had been moving residents out of the area when it went off.
It said the car had been filled with 200kg of explosives.
Pictures on the SANA website showed building fronts blasted open and aid workers standing near piles of shattered masonry and bomb craters, while Syria TV showed a street corner splattered in blood.
"The explosion came suddenly and the only thing I thought to do was fall to the ground," a girl told Syria TV, her hands and face covered in shards of glass.
"Nothing remained. All the building fronts collapsed. God curse them."
No group claimed responsibility for the Aleppo attack, and an activist from the opposition's local Revolutionary Council said the government was behind the explosion.
"They want to make our uprising seem like a terrorist operation to the rest of the world, but it is not," said the activist called Marwan, who spoke to Reuters by telephone.
The Syrian Observatory for Human Rights said at least 19 people, including four children, had died in rocket and gunfire during army raids and fighting with rebels across the country on Sunday.
Reports from Syria are difficult to verify as the government has restricted access to foreign journalists.
In the capital, as hundreds gathered to mourn victims of Saturday's car bombs, activists said security forces beat and arrested people at a march of more than 200 when protesters began shouting "the people want to topple the regime".
