A 30-year-old Santa Rosa man was arrested Tuesday on suspicion of setting fire to a southeast Santa Rosa warehouse two weeks ago, police said.

Robert Baker is suspected of starting the Aug. 17 fire at the warehouse behind Master Cleaners on Petaluma Hill Road. It significantly damaged the structure and its contents, including furniture clients had sent in for repairs, cleaning or reupholstering. Several business cars, tools and equipment were also damaged or destroyed in the blaze, to which firefighters responded shortly before 6:30 a.m., police said.

Damages were estimated at about $450,000. Also destroyed were the belongings of two homeless people who were sleeping in a tent behind the building along Newhall Bike Path.

Santa Rosa Police Sgt. Marcus Sprague said Baker was identified by detectives as a person of interest in the case and was spotted by a patrol officer walking down the street. The officer brought Baker in for questioning, which led to his arrest, according to Sprague.

Baker was booked into the Sonoma County Jail on suspicion of arson.