BLUE ISLAND, Ill. — A probationary Chicago police officer is under investigation after he shot three people at a bowling alley in south suburban Blue Island. 

The Civilian Office of Police Accountability was notified at around 1:40 a.m. Wednesday of a shooting at Burr Oak Bowl, located in the 3000 block of West 127th Street, that left three people wounded. 

Two people, including one victim shot in the chest, were transported to Advocate Christ Medical Center. A third victim self-transported for a superficial graze wound and was later released.

Police sources said the officer who fired the gun is a probationary police officer with less than one year on the job. WGN News is not naming the officer as he has not been criminally charged at this time.

In addition to the off-duty officer, another suspect was taken into custody and a firearm was recovered at the scene.

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In keeping with CPD policy, the officer was stripped of his police powers and will be placed on desk duty for at least 30 days as the investigation continues. 

Law enforcement sources tell WGN News the officer was involved in a previous incident after graduation from the police academy at a celebration called “a star party,” where he drew his weapon at a restaurant and used his radio to make an officer in distress call.