Kolkata: Six people were injured in an explosion in front of a multi-storey building in the Nagerbazar area in the city's northern suburbs on Tuesday, police said.
The explosion was reported outside a fruit shop on the ground floor of the building in the congested Kazipara area under the jurisdiction of Dum Dum Police Station around 9 am, a police officer said.
"It was a high-intensity blast. Six people were injured. Of those six, four people were seriously injured. We found iron nails but can't ascertain the cause of the blast as yet. However, there is no smell of gunpowder," police said.
The CID bomb disposal squad was present at the site of the explosion and investigation is underway.
The injured have been rushed to the state-run R G Kar Medical College and Hospital, he said. The building also houses the office of South Dum Dum Municipality Chairman, the officer said.
A forensic team and sniffer dogs have been sent to the spot to ascertain the nature of explosion, police said.
