New Delhi, Jan 3 (TIWN) Several people including few fire fighters are reported to be trapped inside a factory at Udoh Nagar area of Peeragarhi, the Delhi Fire Services (DFS) said here on Thursday.

A rescue operation is underway and the police, fire brigade personnel, NDRF team and civil authorities are at the spot, an official said.  The building at Udoh Nagar area collapsed following an explosion when firefighters were dousing the blaze, an official said, adding that the fire department had received a call at 4.23 am.  People, including fire personnel, are trapped inside, the official added.  "Those injured, including fire brigade personnel, have been taken to the Sanjay Gandhi hospital and the Balaji Action hospital," he said, adding that 35 fire tenders were at the spot.