Woman sexually assaulted on DePaul University's Lincoln Park campus

CHICAGO (WLS) -- Chicago police issued a warning after a woman was attacked and sexually assaulted on DePaul University's Lincoln Park campus.

Police said the attack happened around 2 a.m. Friday, as the woman - who is not a student - was walking in the 2200-block of North Sheffield. The woman said a man grabbed her from behind and sexually assaulted her in the parking lot behind the DePaul Student Center.

Police have not released a description of the attacker.