Fire officials are investigating a suspicious blaze at a vacant factory in Pittsfield, Massachusetts.
Flames took over the former J.B. Paper Factory on Elmvale Place Monday night, according to necn affiliate WWLP.
Several fire departments from other communities in Berkshire County had to be called in to help battle the fire.
Investigators say the factory was closed and vacant for some time.
Pittsfield's fire chief says the blaze is suspicious because there's been no power at the old paper mill.
No injuries have been reported.