DETROIT -

Detroit police are investigating the shooting of a 2-year-old child Thursday night on the city's east side.

Police say the child was shot in the 4500 block of Lillibridge Street. 

Local 4 has learned the shooting started out as an argument and ended with the gunman firing off seven rounds into a vehicle with the toddler in the backseat.

The child was rushed to Children's Hospital and is in temporary serious condition.

Denise Robinson's house was riddled with bullets.

"The whole argument occurred over a prison number," she said. "They were arguing over who had what number. One said, 'You're an old man number and you got a case on you.'"

The argument ended, but one man returned hours later with a gun and opened fire.

Neighbors say they took cover as the bullets flew. Police say the child took a ricochet bullet to the his arm.

Police sources tell Local 4 detectives have questioned neighbors. Officers were out on Friday searching for a person of interest.

Meanwhile, the child is at the hospital where he is surrounded by family.