A fire at a pharmaceutical plant in Iran killed 30 people and injured 38 others on Sunday, the Reuters reported, according to the IRNA news agency.
Another news agency, Mehr, had earlier said 15 workers had died in the blaze at the factory near the city of Arak, 290 km ( 180 miles) southwest of the capital Tehran.
Provincial officials said the fire had destroyed most of the factory. Mehr said the cause had not yet been determined.