At least 18 killed, six injured in explosion at Tehran medical center

The incident, reportedly caused after the explosion of a gas canister, took place in one of the ground floors of Sina Athar Medical Center in northern Tehran late on Tuesday, presstv.com reported.

Several emergency response units, including ambulances and firefighters, were seen deployed on site as smoke billowed from the building.

Health officials announced that at least 18 people lost their lives in the incident and six other people sustained injuries.