Fire investigators are looking into two incidents of arson at an abandoned building in Auburn this week.

The Maine Fire Marshal’s Office says the fire reported around 9:30 p.m. Monday and a second fire reported around 1:15 a.m. Thursday at the building at 539 Lewiston Junction Road were intentionally set.

The office is working with the Auburn Police and Fire Departments to investigate.

Anyone with information is asked to contact the fire marshal’s office or police.