Updated

A Pakistani official says a roof that was under construction at a religious school collapsed, killing five students.

Local rescue official Natiq Hayyat says nine students were also injured in the incident in the central district of Dera Ghazi Khan on Tuesday.

Hayyat says all the victims have been taken to hospital. The cause of the collapse was not clear.

Pakistan has been hit by flash floods triggered by weekend rains that have killed nearly 50 people in the country's northwest. Flash floods commonly occur during South Asia's summer monsoon season.