A doctor in Qusayr told Al Jazeera there were now more than 1,000 injured people in the town and conditions were becoming increasingly dire.
Kassem Al Zein, who coordinates treatment in several makeshift hospitals, said the wounded were being treated in private homes after the town's main hospital was destroyed.
"Four days ago, some of the injured were taken outside the city but they were hit by the forces of the regime. Some of the injured returned back to us with more injuries," he said.
"It is a serious catastrophe. The martyrs are more than 200. We have no time to bury them. Some stayed for days in the streets. The smell of death is all over the place, it is not human.
"Where is the world, where are the organisations who are claiming to help the people? We have lost everything." Read more
