Chicago police issued a community alert after a person was sexually assaulted in South Austin last month.

A man followed a person from Lake Street and Central Avenue to a multi-unit building in the 200 block of North Central Avenue about 7:45 p.m. Jan. 11 and assaulted them in the stairway, police said. The man had implied he had a sharp object at the time of the assault.

Police described the man as Black, 5 foot 11 with a slim build and one front tooth that’s shorter than the other.

Anyone with information about the incident is asked to call police at (312) 746-8251.