The death toll from a massive explosion at an Iranian port rose to 25 on Sunday with more than 1,100 people injured, according to the state media.

The blast Saturday evening at Iran’s largest and most important shipping port resulted in a major fire, which spread and caused destruction in the surrounding areas. Iran’s heath ministry, citing airborne toxic pollutants, declared a state of emergency in the province and instructed people to stay indoors.

The port, Shahid Rajaee, is strategically located in Bandar Abbas, in southern Iran, along the Strait of Hormuz.