NIAGARA FALLS, NY (WIVB) — A house fire in Niagara Falls uncovered an elaborate and large marijuana growing operation.

The firefighters were breaking through walls of a building at 1223 19th street when they discovered the weed farm.

Officers from the Narcotics Division found plastic hanging over the walls and an elaborate lighting system. All apparently designed to promote plant growth.

News 4 was able to get these photos of the operation from the Niagara-Gazette.

Officers say the marijuana farmers disconnected the electric meter and rigged up a hotwire directly to the National Grid utility pole.

Investigators are trying to find the people in charge of the grow house. The owner of the building reportedly lives in California.