© Reuters/WANAFILE PHOTO: Firefighters in Iran. August 2020.
Ebrahim Ghanbari, the head of the local fire department, told Iranian media that rescue teams were looking for survivors under the rubble.
So far, three people have been confirmed dead, and six were injured.
Ghanbari said that residents, as well as merchants and shoppers at the market, were among the victims.
A gas leak triggered an explosion followed by a large fire inside a clinic in Tehran in June, killing 19 people and injuring 14.
Comment: At this point it's often difficult to assess whether these explosions and fires - that are happening all over the world, with an increasing frequency, but often in some places more than others - are natural, accidental, or criminal.