Ammonia gas leaked from a cold storage today at Dum Dum in the northern fringes of the metropolis, fire brigade officials said.
Four fire tenders were trying to detect the leakage, they said, adding that efforts were being made to contact the owners of the facility.
The storage was closed as it was a Sunday. Locals have evacuated to safer places as a precautionary measure, they said. There was no report of casualties as of now, the fire officials said.
