VARANASI, Nov. 15 -- Around a dozen workers were feared trapped under the debris after a stone mine collapsed in the Billi Markundi mining area under the Obra police station limits in Sonbhadra on Saturday.

District magistrate Badrinath Singh, who reached the spot, said rescue teams from two private companies and the Obra Thermal Power Project were carrying out operations, while teams of the NDRF and SDRF were on their way from Mirzapur. Additional machinery and lighting equipment were being brought in to aid the rescue effort, he added.

When asked how many workers were trapped, the DM said the information was still being verified. He added that a probe would be conducted to ascertain the cause of the collapse.

According to UP minister...