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CHICAGO — Three Chicago police officers and an offender were wounded in a shooting on the city’s Northwest Side. Two other officers were also taken to the hospital.

The shooting occurred near the 25th District police station at 5555 W. Grand Ave. around 9:30 a.m. Thursday. Police said it occurred during an attempt to arrest a person for a carjacking that occurred in June.

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Police said it is unknown if the person arrested had a gun and officers missed it in their search or if the person was able to get a gun from the officers. The Chicago Tribune reported that the suspect concealed the weapon during the arrest.

The person fired shots and struck three officers.

One male officer was taken to Illinois Masonic Hospital in critical condition and underwent surgery for a gunshot wound to the chin. At 11:30 a.m., doctors said they were working to stabilize him. Later Thursday, the officer was put on a ventilator.

The second male officer was taken to the hospital after he was shot in the bullet-proof vest.

A third male officer was wounded in the hip.

Two additional officers, a male and a female, were taken to the hospital with chest pains, according to police.

The offender was also wounded and taken to Stroger Hospital. His condition is not yet known.

Chicago Mayor Lori Lightfoot tweeted asking for prayers for the officer.

“Today is a searing reminder of the danger our men and women of our Police Department face every day they put on their uniforms and leave their homes,” her tweet said.

CPD Supt. David Brown said the shooting is reminder of the danger that officers face every day.

“I would ask the residents of Chicago to keep the police department and its officers, its brave, courageous men and women in your prayers,” Brown said.

The Civilian Office of Police Accountability said they are beginning their investigation into the use of force in the incident. COPA said they are reviewing body camera footage and are gathering other evidence.