Sunday night, Harvey police arrrived at the scene at t-shirt shop in a strip mall near 159th Street and Wood. According to police, the suspect started shooting as soon as an officer walked in and tried to interrupt that robbery.
"Officers responded. The first officer on the scene received shots delivered by the suspect. He returned fire. He sustained a non-life-threatening injuries," said Harvey Deputy Chief Jason Banks.
The suspect managed to get away on foot after firing shots from a handgun, but authorities said the suspect might have been hit in the leg during the shootout.
That officer was transported to Ingalls Hospital and was listed in stable condition. Eyewitness News is told he was shot in the arm.
The Harvey Police Department, along with the Illinois State Police, Cook County Sheriffs and numerous local law enforcement agencies are searching for a male suspect, according to the mayor's office in Harvey.
Investigators say the suspect was wearing black clothing and had on a black ski mask inside the store.
Police say they are using all available resources including dogs, to find the suspect, who is considered armed and dangerous.