Garrett Neese/Daily Mining Gazette Firefighters respond to a fire at a vacant house in Lake Linden Sunday afternoon. The Houghton County Sheriff’s Office and Lake Linden Fire Department could not determine a cause for the fire, and are investigating it as suspicious.

HOUGHTON — A structure fire in Lake Linden is being investigated as suspicious.

The Houghton County Sheriff’s Office and Lake Linden Fire Department are investigating the fire at 510 Kilmar Street, which was reported about 4:10 p.m. No one was injured in the fire.

Departments on scene could not identify the cause of the fire, the sheriff’s office said in a news release. The house was vacant and unoccupied at the time.

The State Fire Marshal has been contacted to investigate the incident. Specialist Trooper Jason Berg of the MSP’s Fire Investigation Unit in Negaunee said he was planning to be on scene Tuesday.

He said the visit would include interviews with neighbors and the homeowner, along with speaking to the fire chief to learn what raised his suspicions.

Berg didn’t have a firm estimate on when a final report might be finished.

“A lot depends on what happens tomorrow,” he said. “Depending on what I find there, that’ll determine what my determination’s going to be or if I have to send stuff out for final analysis.”

The Lake Linden Fire Department was assisted by Bootjack Fire and Rescue, Hubbell Fire Department, Tamarack Fire Department and Calumet Township Fire Department.

Mercy EMS was also on scene.