There were no injuries caused by the blaze, the cause of which is being investigated by the Suffolk County Police Department’s Arson Squad.
The Riverhead Fire Department responded to a fire at the former Riverhead Building Supply building, located on the corner of Ostrander Avenue and Corwin Street, at around 10 p.m. Tuesday. Firefighters from the Quogue, East Quogue, Westhampton Beach, Hampton Bays and Flanders fire departments fought the blaze as well.
George Woodson, the chief of the Riverhead Fire Department, said that about 150 firefighters battled the blaze for two and a half hours. Most remained at the scene until 4 a.m. to make sure that the fire did not reignite.