CHICAGO - SWAT teams responded to a residence early Tuesday in Chicago's Eden Green neighborhood.
There was a report of a person with a gun who barricaded himself inside a residence just after midnight in the 13300 block of South Michigan Avenue, according to police.
An engine, one ambulance, a paramedic supervisor and a battalion chief are on "stand-by," but there were no reports of injuries as of 10 a.m., said Chicago Fire Department spokesperson Larry Merritt.
No further information was immediately available.
This story is developing. Check back for updates.
Sun-Times Media Wire contributed to this report.