Dhaka: At least four persons, including a woman and a child were today killed and 50 injured after the roof of a jute mill collapsed during a tornado in central Bangladesh, police said.

The incident occurred around 2.00 PM (local time) when around 350 workers were working in the jute mill in Faridpur district, some 100 kms from here, local media reported. A portion of the tin roof of the mill collapsed during the storm, Jamil Hassan, superintendent of Faridpur police, was quoted as saying.