Sarnia police were on the scene of two separate crashes on Wednesday.
The first collision was in the area of Wellington Street and Modeland Road.
According to police, it involved a city bus and a car. No injuries have been reported.
The second collision happened between three vehicles on Wellington Street near the entrance of Lambton College.
Police said that the people involved were taken to Bluewater Health.
No charges have been laid at this time, but the investigation is ongoing.