The blast occurred inside a seven-story building, causing heavy damage to two floors.

At least 15 people were killed and several others injured in an explosion in a crowded market area in Bangladesh's capital Dhaka on Tuesday, a local fire service official said.

The blast occurred inside a seven-story building, causing heavy damage to two floors, the official added.

“There were several shops selling sanitary ware and household goods. A bus standing on the opposite side of the building was also damaged in the blast,” fire service official Dinomoni Sharma said.