The death toll from a powerful explosion at Iran's biggest port of Bandar Abbas has risen to at least 25 dead, with more than 700 people injured, state media reported on Sunday, as firefighters worked to fully extinguish the fire.

At least 25 people were killed and hundreds of others were injured in a massive blast that rocked the Iranian port city of Bandar Abbas on Saturday.

DUBAI (Reuters) - A large explosion rocked Shahid Rajaee port in the southern Iranian city of Bandar Abbas on Saturday, with at least 47 people injured after the blast, state media reported. The blast occurred as Iran began a third round of nuclear talks with the United States in Oman, although the cause of the explosion was not immediately clear.