Tyngsboro police are asking for the public’s help to find what they believe is a serial arsonist who set fire to 11 vehicies during the weekend—one of which spread to an adjacent house. 

The fires mostly occurred during what appears to be a half-hour spree from about 2:30 a.m. to 3 a.m. on Oct 8, the department said Friday in a news release.

A car was torched at about 10:45 a.m. Oct. 7, and authorities believe it is connected to the arsons that happened hours later. 

"The perpetrators of this act will be found and held responsible," Police Chief Richard Howe said in a written statement. "They not only intentionally destroyed the property of law abiding Tyngsborough residents, but also endangered community members, as their actions could have caused a much more serious fire."

The fires occurred outside six residences where as many as three cars or motorized scooters in the driveways were burned.

One car fire spread to the adjacent home, authorities said. 

The incidents are being investigated by the Tyngsborough police and fire departments, and state police assigned to the Office of the State Fire Marshal. 

Anyone with information about the fires is encouraged to call the Arson Hotline at 1-800-682-9229. All calls are confidential, and rewards up to $5,000 for information leading to an arrest are available.