Police are warning students at Sheridan College's Oakville campus not to walk alone and avoid the forested area if possible.
On October 5, two women were sexually assaulted, minutes apart, around 1:45 in the afternoon.
One of the women was attacked near the Athletic building, and the other on the trail system.
In both cases, they were jumped from behind and when the victims screamed, the suspect fled.
He's described as a white male, 5-foot-7, was wearing black clothing, and had his face covered.