JOLIET, Ill. (CBS) -- Three people were shot – one fatally – outside of a family counseling center in Joliet Township overnight.

As WBBM Newsradio 780's Nancy Harty reports, two men and a woman were waiting in a car to pick someone up outside Trinity Service Center on Adella Avenue near McIntosh Lane around 10 p.m., the Chicago Tribune reported.

LISTEN: Newsradio 780's Nancy Harty reports

The gunman walked up and shot them all. A 25-year-old man was killed, while a 20-year-old woman was reported in serious condition at Loyola University Medical Center in Maywood, and a 23-year-old man was treated and released the newspaper reported.

Further details were not available Thursday morning. No description of the gunman is available.

The Sun-Times Media Wire contributed to this report.