Police issue warning after South Side sexual assault

August 16, 2011 3:47:26 PM PDT
Chicago police say a man sexually assaulted a woman on the South Side after he asked to use her cell phone.

Police have issued a warning in the wake of the sexual assault and are distributing a sketch of the suspect.

The attack happened Sunday night near 68th and Perry.

Police say the suspect asked the victim to use her phone and then sexually assaulted her at gunpoint.