At least eight people were killed and up to 50 injured after a boiler exploded at a garment factory in Bangladesh on Monday, authorities said.

Dozens of labourers were on site at the factory in an industrial district outside Dhaka when a blast tore through the six-storey building, causing its walls and a roof to collapse.

“It is a terrible scene. Fire brigade officers have arrived and are doing rescue work. The factory’s boiler exploded and the blast also affected other buildings near the factory,” police officer Harunur Rashid said. The factory is owned by textiles manufacturer Multifabs, which makes clothing for mostly European brands according to its website.