BEIRUT – Two car bombs exploded in southern Syria and a rocket slammed into a building in the north, killing at least 12 people in a spike in civil war violence Friday. The rocket attack in the northern city of Aleppo and the suicide car bombings in Daraa, south of Damascus, occurred during a particularly bloody week nearly two years after an uprising began against Assad's regime. The Local Coordination Committees of Syria, an activist group, and the Aleppo Media Center, a network of anti-regime activists, accused the government of launching an airstrike. The Britain-based Syrian Observatory for Human Rights said 12 people were killed in the Aleppo attack and dozens were wounded. The group relies on reports from activists on the ground. Also Friday, fighting between Syrian rebels and Assad's loyalists flared in a Palestinian refugee camp in Damascus, killing 12 people and wounding at least 20 others, a UN refugee agency said. Children were among the casualties, according to a statement issued by the UN Relief and Works Agency. The agency called on both sides to “pull back from civilian areas.” – AP