DHAKA, Bangladesh >> An explosion in a seven-story commercial building in Bangladesh’s capital on Tuesday killed at least 14 people and injured dozens, officials said.

The explosion occurred in Gulistan, a busy commercial area of Dhaka, fire department official Rashed bin Khaled said by phone.

The building contained several stores selling plumbing products and household items, and its first two floors were badly damaged, according to fire officials.

It was not immediately clear what caused the explosion.

Khaled said at least 11 fire department teams were working at the scene of the explosion.

Bacchu Mia, a police official at the state-run Dhaka Medical College Hospital, said more than 50 people were taken there for treatment, and at least 14 of them were dead.

Bangladesh has a history of fires and industrial disasters.

— The Associated Press