A crossing guard struck by a vehicle last Wednesday morning has been transferred to a London hospital.
City police say the 76-year-old man remains in serious condition.
The Sarnia police Criminal Investigation Unit and Traffic Branch continue to investigate the incident, which happened around 8:50am at the intersection of Ontario St. and Talfourd St.
The 24-year-old male driver was not injured.
Anyone with information should contact the Sarnia Police Service.