A collision involving a TTC bus and two other vehicles late Thursday night in North York left three people injured and led to an impaired driving arrest.

Police and emergency crews responded to reports of the crash at Trethewey Drive and Martha Eaton Way shortly before midnight. Authorities later confirmed the incident involved a taxi, a passenger vehicle and a TTC bus.

Paramedics transported three individuals to hospital. A woman was treated for serious injuries that were not considered life-threatening, while two men suffered minor injuries. No passengers from the bus required medical attention.

Officers at the scene arrested one of the drivers on suspicion of impaired driving. Police have not released further information about the individual or what may have caused the collision.

The intersection was closed for several hours overnight while investigators examined the scene. Police are urging witnesses or anyone with dashcam footage to contact them.