ARLINGTON – A two-alarm fire in downtown Arlington Monday damaged one of the town’s original historic buildings along Olympic Avenue.

Arlington firefighters responded to a 911 call just after 7 p.m. at North Olympic and East Second Street.

Public Information Officer Kristin Banfield said the fire that gutted the 2 Bits & More thrift store was difficult for firefighters to put out due to the age and construction of the late 1800s building. The store had also undergone renovations over the years, so as firefighters went in they found pockets where there could be more fire.

Banfield also reported that loud booms heard during the incident were from a partial collapse on the back side of the building, and a pressurized heat explosion from inside the building blew out the thrift shop’s front window.

Bistro San Martin next door was used to vent some of the pressure, but is closed on Mondays so no one was in the building

No injuries have been reported to firefighters or occupants inside second-story apartments adjacent to and behind the building; however, 10-15 residents were displaced.

Banfield said the Support 46 Team, an outstanding support and chaplains program in Arlington, is helping the displaced resident. The city has also reached out to the American Red Cross for their assistance.

Arlington Fire was assisted by Station 22 Getchell, North County Fire, Oso Fire and Marysville Fire District.

Road closures were in effect that cordoned off Olympic between Second and Fourth streets.

The fire broke out during a City Council work session in city hall directly across the street.

Cause of the fire is still under investigation, officials said.