DHAKA, Bangladesh — Bangladesh’s government has ordered an investigation into allegations that the sole emergency exit was locked at a garment factory where a fire killed seven female workers, an official said Sunday.

The fire Saturday at the Smart Export Garment Ltd. factory occurred just two months after a blaze killed 112 workers in another factory near the capital, raising questions about safety in Bangladesh’s garment industry, which exports clothes to leading Western retailers. The gates of that factory were locked.