Four people are under arrest after firefighters discovered a marijuana growing operation in Griffintown.
Firefighters went to an industrial building at 1844 William street Tuesday morning because the smoke alarms were going off.
They rushed inside the run-down building only to discover roughly 1,000 marijuana plants.
They also found two men and two women, aged 47, 48, 49 and 51, whom they detained while they notified police.
The four gardeners were arrested and taken into policy custody.
No word yet on what charges they will face, if any.
