The Latest on shooting of 1-year-old Chicago boy (all times local):

12:45 p.m.

Chicago Police say the gunman who opened fire on an SUV and shot a 1-year-old boy in the head may have been aiming at the child's mother.

Department spokesman Anthony Guglielmi says Thursday evening's shooting that left the 1-year-old boy in very critical condition and on life support was not a random act and that detectives are trying to determine if the boy's mother, who was also in the vehicle, may have been the target.

Police say the boy's grandmother was dropping someone off at a home on the city's South Side on Thursday when someone in a dark-colored car fired as many as eight shots. Police say the grandmother did not see who fired or get a good look at the vehicle because by the time she turned around after hearing the sound of a window of her SUV shatter, the boy had been shot in the head.

No arrests have been made and Guglielmi says that police are collecting footage from surveillance video cameras in the area in the hopes of getting a look at the suspect and the vehicle the suspect was in.

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11:27 a.m.

Chicago police say a 1-year-old boy was shot while sitting in the back seat of a car parked on a street on the city's South Side has been placed on life support and is on critical condition.

Department spokesman Anthony Guglielmi says the boy's grandmother was dropping someone off Thursday night when she heard glass breaking and looked back to see that the baby had been shot.

Police say two other children were also in the car at the time.

Guglielmi says police believe that the shooter may have mistaken the car for another vehicle and opened fire. He says there is no reason to believe the grandmother was a target and police do not believe the gunman was aiming for another vehicle.

No arrests have been made.

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8:01 a.m.

Chicago police say a 1-year-old boy was shot in the head while sitting in the back seat of a car parked on a street on the city's South Side.

Police say the shooting happened Thursday evening. Chicago police spokesman Anthony Guglielmi says the boy's grandmother was dropping someone off on the block when she heard glass breaking. She looked in the car and saw the baby had been shot.

Police say two other children were also in the car at the time. Authorities say the baby is hospitalized in critical condition.

Police said a dark, older-model vehicle pulled up and someone inside opened fire. Guglielmi says police are investigating and that the shooter may have mistaken the car's identity.

No arrests have been made.