BAKER CITY -- Law enforcement were on scene after a person drove a van onto the runways at the Baker City Municipal Airport Tuesday morning.

According to the Baker County Sheriff's Office, dispatchers first received the report of the suspect driving around on the runways at 8:30 a.m.

The driver of the van, 47-year-old Scott William Chase, refused to get out of the vehicle until SWAT Teams made contact with him and got him into custody, deputies say. 

Police believed that Chase had a firearm and previous attempts to contact him failed.

By 2:30 p.m., the Northeast Oregon Regional SWAT Teams were called in. At about 4:50 p.m. the SWAT Teams took Chase into custody.

Chase is being evaluated by a mental health professional and may be charged with criminal mischief and disorderly conduct.

Investigations into the incident are still ongoing.

Staff at the airport diverted all air traffic, and the runway was shut down.

According to the FAA, the airport sees about 16,200 aircraft operations per year, or about 44 each day. It's unclear how many planes have had to divert on Tuesday.