The fire that destroyed a historic Cambridge farmhouse on Sunday is now being investigated as arson.
On Monday, Waterloo regional police said investigators have learned a large group of people was in the area before the fire started around 4 a.m.
Neighbours previously told CTV News a party with a number of young people happened at the lot near Maple Bush Drive and Wesley Boulevard on the night flames erupted.
No injuries were reported, but the fire levelled a 19th century gothic farmhouse on the city’s heritage registry.
Crews had been preparing to move the structure to preserve it amid construction of a new subdivision in the area.
The Architectural Conservancy of Ontario called the loss “a tragedy.”