A suspicious fire broke out early Friday morning at a former school for the mentally disabled in Taunton.
The secluded area has been defunct and without power since 2002. Fire crews say they're investigating the fire as arson, though no official cause has been determined.
George Tavares made the 911 call at about 2:15 a.m.
Tavares is a security guard for the industrial complex, which used to be the Paul A. Dever State School and a former World War II military base. There have been five suspicious fires at the site in as many years.
Only one of the five fires has been ruled as arson. That one took place in Memorial Day, but police have yet to find the arsonist.
It's evident by the graffiti that the buildings left standing have been broken into.
"The people doing that, they're just putting themselves and other people in danger. And again, we're moving to make sure we take away that opportunity," said Kendall Caldwell, who manages the complex.
Caldwell said the buildings were set to be torn down anyway.
Police offered a reward to anyone who has information about the previous fires. So far, no one has come forward.