A Toronto school bus driver is being accused of sexually assaulting three children over a five-month span.

Police say the alleged sexual assaults took place between September 2015 and January 15, 2016.

The victims are all described as pre-teen children.

A suspect identified as Frank Gavas, 61, was arrested last Friday and charged with six counts of sexual assault and six counts of sexual interference in connection with the allegations. None of the charges have been proven in court.

Police say that there may be additional victims who have not yet come forward.

Gavas has been employed by Stock Transportation since 2006 and has driven for a number of schools in the Scarborough area, including Georges Vanier Secondary School, Wexford Public School, George Peck Public School and Sloane Public School.

Anyone with information is asked to contact police at (416) 808-4100 or Crime Stoppers anonymously at (416) 222-TIPS (8477).