Thunder Bay police are investigating a crash that led to road closures in the city on Saturday.
Emergency crews were called to the scene around 11:50 a.m. Details about how many vehicles were involved or whether there were any injuries have not been released.
Oliver Road has been shut down between Highway 11/17 and Belrose Road and is expected to remain closed for an extended period while investigators examine the scene.
Drivers are being urged to avoid the area and use alternate routes as the traffic unit continues its investigation.