Millbury manufacturing fire ruled arson

Courtesy/Millbury Fire Department
Courtesy/Millbury Fire Department
Firefighters tackle a fire at 9 Railroad Ave in Millbury Saturday night.

State and local officials have ruled that a fire that destroyed part of the manufacturing facility in Millbury on Saturday was arson.
The three-alarm fire broke out in an industrial complex at 9 Railroad Avenue around 11 p.m., officials said. Part of a building was destroyed, while other areas experienced water and smoke damage. 
The building houses several companies, including Phoenix Exposition Services, the fire marshal’s office said Tuesday. Robot manufacturer Ranger Automation Systems is listed at that address as well.