Hossein Zafari, a spokesperson for Iran’s crisis management organisation, appeared to blame the explosion on poor storage of chemicals in containers at Shahid Rajaee.
“The cause of the explosion was the chemicals inside the containers,” he told Iran’s ILNA news agency.
“Previously, the Director General of Crisis Management had given warnings to this port during their visits and had pointed out the possibility of danger,” Zafari said.
An Iranian government spokesperson, however, said that although chemicals had likely caused the blast, it was not yet possible to determine the exact reason.
Iran’s official news channels aired footage of a vast black and orange cloud of smoke billowing up above the port in the aftermath of the blast, and an office building with its doors blown off and papers and debris strewn around.