Vaughan Fire chief Greg Senay (left) chats with Ryan Priestly of Priestly Demolition after a fire at Hay Hoe Mill on Pine Grove Road in Vaughan, which started at about 7:30 p.m. July 1. The structure was 150 years old. STAFF PHOTO/SJOERD WITTEVEEN

The Ontario Fire Marshal’s office has been called in to probe a blaze at a Woodbridge flour mill.

Last night at about 7:40 p.m., emergency crews were called to Hayhoe Mills at 201 Pine Grove Rd., near Islington Avenue and Langstaff Road.

Employees said they smelled smoke and heard an explosion, according to York Regional Police.

As a large amount of smoke billowed from the burning mill, nearby buildings, reportedly including a
retirement home, were evacuated.

The Hayhoe family announced the sale of the business to Parrish & Heimbecker Ltd. (P&H) in February 2007. According to a web site, the mill was established in 1935.