Accumulation of methane gas at the Zemestanyurt coal mine in Golestan province's Azad-Shahr city triggered the blast on May 3 and killed 35 miners who were working at a depth of 1,200 metres. Twenty-two bodies were found on Sunday, Press TV reported.
"After rescue workers reached the site of the explosion in the second tunnel (dug for rescue purposes at the mine), they managed to reach the 13 bodies. The workers are trying to take the bodies out," the official said.
The explosion also left 73 other workers injured.
President Hassan Rouhani travelled to the city on Sunday to address the situation and met the survivors, reports Press TV.
Rouhani called for the incident to be probed "so that such disasters do not repeat in the future".
The mine commenced operations 13 years ago, and there were reports that the equipment used was in dire need of repair or replacement.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
About VDC
Doraiah Chowdary Vundavally is a Software engineer at VTech . He is the news editor of SocialNews.XYZ and Freelance writer-contributes Telugu and English Columns on Films, Politics, and Gossips. He is the primary contributor for South Cinema Section of SocialNews.XYZ. His mission is to help to develop SocialNews.XYZ into a News website that has no bias or judgement towards any.