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The Associated Press
Syrian army defectors gather at the mountain resort town of Zabadani, Syria, near the Lebanese border, on Friday Jan. 20, 2012. President Bashar Assad's forces attacked Zabadani, some 17 miles (27 kilometers) west of the capital, for six days, sparking fierce fighting that involved heavy bombardments and clashes with army defectors. On Wednesday, government tanks and armored vehicles pulled back, leaving the opposition in control of the town. Buoyed by the opposition's control of a town near the Syrian capital, thousands of people held anti-government protests Friday, chanting for the downfall of the regime. At least eight people were killed by security forces across the country, activists said. (AP Photo)

BEIRUT — State-run news agency SANA says at least 15 people were killed in an ambush that targeted a police truck transporting prisoners in northwestern Syria.

SANA says 26 others were wounded in the attack that occurred on the Idlib-Ariha highway Saturday.

It says the truck was targeted by four explosive devices and that "terrorists" also attacked an ambulance that arrived to assist the wounded.

The British-based opposition activist group, the Syrian Observatory for Human Rights, confirms the incident. It puts the toll at 11 dead and says a single bomb hit the truck.