Iran says the fire at a southern port rocked by an explosion finally was extinguished as the death toll in the incident rose to at least 70 people killed.

The interior minister said "some individuals deemed responsible" for Saturday's blast at Shahid Rajaee are being questioned.

The death toll from a major explosion in Iran's most important container port of Bandar Abbas rose to at least 70, with over 1,200 injured, state media said on Monday, as firefighters battled a blaze that Iranian officials said was now under control 48 hours after the start of the fire.