A Friday morning ammonia leak forced the evacuation of a frozen food warehouse in southeast Calgary.
The Calgary Fire Department (CFD) said the leak occurred 4600 block of 72 Ave. S.E.
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An ammonia detector alerted workers to the leak and the company called Calgary fire around 4 a.m.
Fire crews arrived and the building was evacuated. The source of the leak was found and stopped.
CFD said there was another ammonia leak at the same location a few weeks ago.
No injuries were reported.