At 5:03 a.m. Monday, officers responded to security alarms at a construction site adjacent to Pop Kenney Stadium.
One suspect, within a building on the premises, was located and detained by authorities. Officers believe a second suspect fled the scene. A K-9 team search cleared the area.
An investigation is ongoing, as authorities try to determine if anything was stolen from the site or anything destroyed during the incident.
Officers are unsure of why the subject was in the building, said Capt. Mike Johnson with the Bothell Police Department.