Ithaca, NY (WBNG Binghamton) Cornell University begins the fall semester on high alert.
A string of sexual assaults has school leaders concerned about student safety.
One of these incidents was a rape that happened around 3:45 a.m. Sunday.
Campus police said a female student was attacked on the stairs leading to the south side of the Suspension bridge along University Avenue.
She described her attacker as a dark-skinned or hispanic-white man, between 5 feet 9 inches and 6 feet tall.
Earlier that morning were two other assaults.
Around 2 a.m., police said a female student in the lower Hughes parking lot was grabbed from behind by a man, who ran off after the student hit him with a bag and other students intervened.
A third incident happened off campus just after 3 a.m. at an apartment along College Avenue.
Police said the victim heard a knock at her door and opened the door, thinking it was a friend. But the man on the other side forced his way inside and reportedly groped the woman until she was able to push him back out the door and lock it.
The suspect in this incident is described as a college age hispanic male, between 5 feet 9 and 5 feet 10 inches tall with a noticeable mole on one cheek. He was wearing a white long-sleeve button down shirt and plaid shorts at the time.
Police are not saying whether the incidents are connected.
Ithaca and Cornell police ask anyone who witnessed any of the incidents or who has information to call them.
Cornell University Police: (607) 255-1111
Ithaca Police: (607) 272-3245