Police in a suburb north of Atlanta have determined that another child accidentally shot and injured a 6-year-old boy as he rode his bicycle.

Gwinnett County police Cpl. Michele Pihera said in a news release Thursday that Ni-Shawn Moore was accidentally shot by a friend of his. The lead detective hasn't decided yet whether to file criminal charges.

Police had said someone approached the boy and shot him in the upper chest March 12 as he rode his bike during a neighborhood birthday party in the Lawrenceville area.

Ni-Shawn's family initially thought he had been hit by a BB, but doctors determined after he was taken to a hospital that he was struck by a .22-caliber bullet.

Ni-Shawn was released from the hospital in mid-March.