UPDATED at 11:40 a.m. with new detail from police about those riding with boy.

ST. LOUIS • St. Louis police were investigating after a 2-year-old boy was shot in the arm Monday night.

At about 7:10 p.m., the child's father flagged down police officers at Interstate 70 and Grand Avenue. His son had been shot, police said. The bullet went all the way through the boy's arm, police said.

Those in the car with him originally said they were driving near North Broadway and Bittner Street when the shooting happened, but after brief interviews, they said the shooting happened south of that, near North Broadway and Calvary Avenue.

In addition to the boy who was shot, the occupants of the car were a 5-year-old boy, a 21-year-old man and two women, ages 26 and 28.

The adults in the car told police that a Dodge Durango chased their silver sedan. Someone in the Durango fired shots at them. The Durango then sped off.

They then drove to a gas station at 70 and Grand for help. They were not being very cooperative with officers, police said.

The 2-year-old boy was taken to a hospital and was in serious but stable condition.

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