Nineteen people have been arrested and $3-million worth of drugs, vehicles, and cash have been seized in a bust that stretched beyond the GTA, Durham police said Friday.

The first inkling that something was happening was a raid on a “clandestine” lab near Dundas Street and Dovercourt Road on Thursday morning. Toronto police and firefighters were called in, and Durham police were already at the home on Lisgar Street when they arrived shortly after 6 a.m.

Crews found a lab with an unidentified substance inside, and it’s not known if anyone was at the home.

Officers were knocking on doors in the neighbourhood, telling residents they were investigating a lab.

Toronto police’s CBRN (Chemical Biological Radiological Nuclear) team was called in.

Durham police had been executing search warrants in the area and at Lake Shore Boulevard and Park Lawn Road, and Toronto police were assisting.

The raids were part of Durham police’s ‘Project Neebing,’ a multi-jurisdictional drug investigation targeting street-level drug trafficking, which began in November of 2015.

The search warrants took place at 16 locations, stretching from Mississauga east to Belleville. In all, 19 people were arrested.

Along with discovering a clandestine lab, police seized three handguns, four long guns, cocaine, hashish, marijuana, money, and vehicles.

The drugs seized are worth about $2.4 million, police said, and included more than 80 kilograms of hashish, one kilogram of methamphetamine, 1.6 kilograms of MDMA, and 1.9 kilograms of Benzylpiperazine (BZP).

The raids were executed at the following locations:

Hill Heights Road, Toronto

Chimes Lane, Toronto

Hayden Street, Toronto

Kingsway Crescent, Toronto

Symington Avenue, Toronto

Maybank Avenue, Toronto

Sherway Gardens Road, Toronto

Hill Heights Road, Toronto

Lakeshore Avenue West, Toronto

Lisgar Street, Toronto

Tipperary Crescent, Mississauga

Nonquon Road, Oshawa

Cameron Street, Cannington

Regional Rd. 3, Enniskillen

Talbot Lane, Brechin

Sidney Street, Belleville

The names of those arrested and the charges they face can be found here (pdf).