An activist identified only as Abu Faris was part of a rescue operation in Rifai . NEW : 22 people have died in violence across Damascus December , an opposition group says . NEW : Opposition activists describe aftermath of an attack in Homs . State media report 22 deaths in Syria . 22 booby-trapped cars exploded in crowded areas , a state news agency says .
NEW : 22 people have died in violence across Damascus December , an opposition group says . NEW : Opposition activists describe aftermath of an attack in Homs . State media report 22 deaths in Syria . 22 booby-trapped cars exploded in crowded areas , a state news agency says .