The roof of a hospital in central Nepal (search) collapsed Thursday, killing at least 10 people and injuring nine others, an official said.

The roof, made of corrugated fiberglass sheets, fell on people who were sitting in a waiting area in a pavilion next to the seven-story Manipal Teaching Hospital (search) in Pokhara, said Yog Raj Poudel, the area's top official.

Most of the dead were patients and their relatives, Poudel said, adding that workers were still looking for victims under the debris.

Authorities pointed to faulty construction as the reason for the collapse in Pokhara, about 125 miles west of Katmandu (search).

Building collapses are common in Nepal, an impoverished country where construction laws are poorly enforced.