The hydroponic system has since been dismantled by the drug squad, and the plants – which were largely unharmed thanks to firefighters’ quick work – have been seized

A housefire this weekend in a suburban home in northwest Sydney, Australia, has exposed a sophisticated indoor cannabis grow after neighbours who smelled smoke called emergency services.

Firefighters responded to blaze around 18:15 on Saturday, and quickly discovered a cannabis crop in each of the five bedrooms, totalling over 100 plants, once they had contained the fire.

Upon searching the premises to check for potentially injured residents, they discovered an elaborate hydroponic setup.

Fire and Rescue NSW transferred custody of the Percy Street site to Bankstown police approximately two hours after responding to the call.

From the outside it looked like any other house fire – until the flames uncovered a massive haul of drugs in Sydney's south-west. @hansinclair9 #9News pic.twitter.com/0dm3wPY2wQ — 9News Sydney (@9NewsSyd) May 12, 2019

Authorities are currently searching for suspects, but so far no arrests have been made and police are still unsure of who was living in the house. Investigators are posted around the site to monitor for any suspicious activity. The hydroponic system has since been dismantled by the drug squad, and the plants–which were largely unharmed thanks to firefighters’ quick work–have been seized.

Locals were left shaken by the incident.

Neighbourhood resident Emmanuel Giannopoulos told Nine News that he found it “quite concerning to know these things happen,” while neighbour Zoran Mitreski told the Sydney Morning Herald that “you just don’t know your neighbours, unfortunately”.

Bankstown police are asking anyone with information Police are urging anyone with information about this incident to contact nsw.crimestoppers.com.au.