A national team of fire specialists arrived at the burnt remains of the Press Bar and Parlor in St. Cloud on Friday to begin investigating the source of the blaze and whether arson may have been a factor.
The fire erupted early Monday, leaving the 100-year-old two-story downtown building a total loss, with damage estimates exceeding $1 million.
The National Response Team, part of the Bureau of Alcohol, Tobacco, Firearms and Explosives, will join local fire departments and Minnesota-based ATF agents in reconstructing the scene of the fire, identifying the location of origin, conducting interviews and sorting through rubble.
"ATF's involvement in this investigation is strictly as a support role," Special Agent in Charge William Terry Henderson of the St. Paul Field Division said in a statement. "This was a large fire and the extra personnel will help move this investigation along more quickly."
The last time the local ATF field office summoned a National Response Team was in 2004. The teams have also been deployed to high-profile events such as the Oklahoma City federal building bombing, the Pentagon crash site on Sept. 11, 2001, an explosion in West Texas and blasts at explosives and ammunition manufacturing plants and fireworks factories, according to the ATF.
ATF spokeswoman Ashlee Sherrill said it's too early to say whether investigators suspect foul play. "The whole purpose is to discover the origin and cause, which we can't know going into it," she said.
The ATF established the National Response Teams in 1978 to assist on "scenes of significant explosions and arson incidents."
The response teams consist of forensic chemists, explosives enforcement officers and other veteran special agents from across the country with experience in "post-blast" and fire-origin expertise.