DAMASCUS – A car bombing on Sunday in the central Syrian province of Homs killed seven people, five of them schoolchildren. The Syrian Observatory for Human Rights, which relies on a network of activists and medics on the ground, confirmed the blast and said it killed six people and wounded others. The suicide truck bombing occurred outside a compound of schools in the town of Umm Al-Amed in the eastern province of Homs, an official from the governor's office said. He said the blast destroyed a series of buildings, and that rescue operations were continuing in the area. Rami Abdurrahman of the British-based Syrian Observatory for Human Rights said he couldn't say how many of the dead were children. Meanwhile, government forces continued bombing opposition-held parts of the northern city of Aleppo and its surrounding province with barrel bombs for the eighth day. Syrian military helicopters hurled four barrel bombs that exploded in a hardscrabble secondhand market in the rebel-held Masaken Hanano quarter, activists said. “The medics say they are removing people in parts; they aren't sure how many they are,” said Hassoun Abu Faisal, an activist with the Aleppo Media Center. He said the bombs destroyed vehicles lining a main road, destroyed a two-story building and left a crater where part of the market was. He said medics counted 13 dead so far. The British-based Observatory said “tens of people” likely were killed. Three members of the same family were killed in the nearby town of Marea after a barrel bomb exploded near a school used by Syrians fleeing fighting in other areas, said Abu Faisal and the Syrian Observatory. The barrel bombs — containers containing hundreds of pounds (kilograms) of explosives and fuel — are wildly inaccurate. Human rights groups warn that even if Syrian forces are targeting rebels with the bombs, they often explode in residential areas, killing civilians. The aid group Doctors Without Borders says the strikes have killed some 190 people. Syrian officials have not commented on the air raids in Aleppo, the country's largest city, and a major front in the war since the rebels launched an offensive there in mid-2012. The city has been carved into opposition- and government-held areas. The escalation comes ahead of peace talks scheduled to begin on Jan. 22 in Switzerland. The timing has sparked speculation that Assad may be trying to strengthen his position on the ground and expose opposition weaknesses before sitting down at the negotiating table. Syria's civil war, now into its third year, has killed more than 120,000 people, according to activists. Millions have fled their homes because of the fighting. – Agencies