Updated 4:00 p.m. Wednesday:
Thunder Bay Police have searched 25 buses and found no explosive devices on board.
Investigators have cleared the vehicles and released them back to the city.
Transit service is set to resume at 6:00 p.m. Wednesday after authorities were called to report to a potential bomb threat just before 9:30 a.m.
An individual remains in custody, their involvement with the original threat is still to be determined.
