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CHICAGO -- Two Chicago police officers are in critical condition after crashing into a construction barrier on the city's South Side.

The crash happened just after 4 a.m. Thursday at a construction site at 83rd and Woodlawn.

The police SUV crashed through a concrete barrier, then dropped into a hole dug into the intersection, trapping both officers.

The Chicago Fire Department had to extricate the male officers, and both were rushed to Christ Hospital in critical condition with non-life threatening injuries.

The 33-year-old officer injured his arm, and the 25-year-old officer injured his arm, hip and leg.

They are now listed in stable condition.

It is unknown at this time how exactly the crash happened. The police union president tells WGN the officers weren't in pursuit of anyone.

An investigation is underway.

This is a developing story. Check back for details.