The facility, which is situated about 150 kilometres (95 miles) southwest of Berlin, is reportedly an exhausted potash mine where mineral waste is now stored, ONA reports citing Sputnik.
Two people have been wounded by a blast at the Teutschenthal facility, located near the town of Halle, Saxony-Anhalt. At the same time, over 30 are believed to be blocked in a safety area underground.
At the same time, MDR has reported that 38 people are trapped at the site.
Police have confirmed the reports about the two injured by the blast, adding they have been admitted to a hospital.
A rescue operation is underway.