TINLEY PARK, Ill. - Authorities are searching for four men who fled on foot after a traffic crash Monday morning in Chicago's south suburbs.

What we know:

Tinley Park police said they are helping Matteson officers in the area of Vollmer Road and Harlem Avenue. Image 1 of 3 ▼

According to police, five men dressed in all black took off on foot westbound from the scene of a crash. The men may be armed with handguns.

At 6:50 a.m., Tinley Park PD announced one of the subjects was in custody.

What we don't know:

Police have not released details about the crash itself, whether anyone was injured, or what led up to the incident.

The Source: The information in this article came from the Tinley Park Police Department. Crime and Public Safety Tinley Park Matteson News

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