At least four people have been killed and 500 injured in a massive explosion at one of Iran's key ports, state media is reporting. The suspected chemical blast took place at Shahid Rajaee, the country's largest commercial port, near the southern city of Bandar Abbas on Saturday morning.

A massive explosion and fire rocked a port in southern Iran purportedly linked to a shipment of a chemical ingredient used to make missile propellant, killing five people and injuring more than 700 others.