At least 15 workers were killed when a missile strike hit a factory in the central Iranian city of Isfahan on Saturday, the semi-official Fars news agency said.
There were workers inside the factory, which produces heaters and refrigerators, when the strike hit, Fars reported.
The agency blamed the attack on the "American-Zionist (Israeli) enemy" and said it was caused by a missile.
The Israeli military did not immediately comment on the incident.
