A large fire engulfed Canopy Growth’s former greenhouse facility in Delta, B.C., the morning of Nov. 1, with the blaze under control by the afternoon, according to the Vancouver Sun.

The Canadian LP shuttered the facility in March as part of a “production optimization plan,” which also resulted in the closure of another greenhouse in Aldergrove, B.C., and the elimination of roughly 500 employees.

“The site hasn’t been operational in months, so thankfully there wasn’t anyone on site, nor were there any plants on site,” Jordan Sinclair, Canopy Growth’s vice president of communications, told Cannabis Business Times in a prepared statement. “We’d like to thank the Delta Fire and Emergency Services for their brave work containing the fire.”

Firefighters were called to the scene around 7:30 a.m. on Sunday morning, the Vancouver Sun reported, and it took 30 firefighters across seven crews to manage the fire, which was contained to the shipping and receiving section of the facility.

No one was inside the facility when the fire broke out, and no injuries were reported, according to CBC News.

There was no indication of chemicals or fertilizers present in the blaze, according to the Vancouver Sun, and firefighters believed the smoke was nontoxic.

The cause of the fire is still under investigation, according to a CTV News report.