International: A gas explosion in a coal mine in Iran's South Khorasan Province killed at least 51 people and injured 20, Iran's state media said on Sunday. The accident was caused by a methane gas explosion in two blocks, B and C, of the mine run by the Madanjoo company, state media said. "76% of the country's coal is provided from this region and around 8 to 10 big companies are working in the region including Madanjoo company," the governor of South Khorasan Province Ali Akbar Rahimi told state TV on Sunday.

The rescue operation in block B has been completed. Of the 47 workers who were in the block 30 died and 17 were injured, Rahimi said earlier.

President ordered investigation

Iran's new reformist President Masoud Pezeshkian, preparing to travel to New York for the United Nations General Assembly, said he ordered all efforts be made to rescue those trapped and aid their families. He also said an investigation into the incident had begun. "I spoke with ministers and we will do our best to follow up," Pezeshkian said in televised comments.

Oil-producing Iran is also rich in a variety of minerals. Iran annually consumes some 3.5 million tons of coal but only extracts about 1.8 million tons from its mines per year. The rest is imported, often consumed in the country’s steel mills.

This is not the first disaster to strike Iran’s mining industry. In 2013, 11 workers were killed in two separate mining incidents. In 2009, 20 workers were killed in several incidents. In 2017, a coal mine explosion killed at least 42 people.

Lax safety standards and inadequate emergency services in mining areas are often blamed for the fatalities.