A fire has destroyed a nine-story garment factory near Bangladesh's capital, but officials say no casualties have been reported.

Fire officials say unidentified people set fire to the factory in Gazipur district after it had closed Thursday night.

Local fire official Abu Jafar told The Associated Press that no casualties have been reported because the fire happened outside of work hours.

The factory belongs to Standard Group of Companies Ltd, a Bangladeshi company.

Jafar says 200 firefighters worked to bring the fire under control but some of them could not reach the scene immediately because angry factory workers blocked them.

Jafar says the workers had a dispute with the company management but could not provide further details.