Dozens killed when rebels attack a Sunni town . At least 20 people are injured when their homes are attacked with grenades . The attacks come a day after Yemen 's vice president called for presidential elections to be held in February , state media reported . Doctors could not treat the injured because the town is under siege . Saleh returned to Yemen on Saturday morning .
Dozens killed when rebels attack a Sunni town . At least 20 people are injured when their homes are attacked with grenades . Doctors could not treat the injured because the town is under siege . Saleh returned to Yemen on Saturday morning .