Al-Jazeera Video: Syrian troops killed in rebel attacks on checkpoints

"Syrian rebels have killed at least 28 government soldiers in attacks on three army checkpoints on the main road from Damascus to the northern city of Aleppo, according to an activist group. Five rebels were also killed in the fighting near the northwest city of Saraqeb on Thursday, which became a key battleground after opposition forces seized the adjacent strategic town of Maaret al-Numan, the Syrian Observatory for Human Rights said. Al Jazeera's Zeina Khodr reports."