A man has been arrested and charged with sexual assault after two women were allegedly attacked on public transit over the weekend, Toronto police say.

Police say at approximately 3:50 p.m. Sunday, a girl was sexually assaulted by an unknown man while on board a Toronto Transit Commission (TTC) subway train at College Station. 

Authorities add that shortly after the first assault, another female was sexually assaulted at the TTC's Bloor-Yonge Station. Police say they are still trying to locate the second female involved and suspect other victims may be involved. 

A 52-year-old man has been charged with two counts of sexual assault and one count of sexual interference. 

Anyone with information is asked to call police at 416-808-5200 or Crime Stoppers anonymously at 416-222-TIPS.