4 killed, over 500 injured in massive explosion at Iran port

State media reported a "massive explosion" at Shahid Rajaee, the country`s largest commercial port, located in Hormozgan province on Iran`s southern coast

Although the cause of the blast was not immediately clear, the customs office said in a statement carried by state TV that it probably resulted from fire

Customs office said in a statement carried by state TV that explosion may have resulted from a fire that broke out at a chemical material storage depot

Citing local emergency services, state TV reported that at least 516 people were injured and "hundreds have been transferred to nearby medical centres"

"At least four deaths have been confirmed by rescuers," the head of the Red Crescent Society`s Relief and Rescue Organisation, Babak Mahmoudi, told the state TV