Oak Park standoff: Armed person surrenders after reportedly barricaded for 18 hours, police say

OAK PARK, Ill. (WLS) -- An 18-hour standoff in Oak Park has been resolved, authorities said.

Officers initially responded on Thursday shortly after 11 a.m. to reports of an armed and barricaded person alone in an apartment, police said. As of 6 p.m., the Oak Park Police Department and the Cook County Sherriff's Office remained on the scene.

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There was still a heavy police presence and road closures near the 1100 block of North Harlem Avenue on Friday morning, but the armed person surrendered around 5:20 a.m., police said.

The person was transported to a local hospital for a mental health evaluation and no one was injured, police said.

Police have not provided further information about the incident.