ST. PETERSBURG — A 10-year-old boy was injured Monday morning in what police are calling an accidental shooting involving a group of children being supervised by a teenager.Five children, ages 9 to 17, were inside 2336 17th Ave. S when an 11-year-old boy began playing with a gun, which investigators said had been brought into the home by Marquis Strickland, 17.The 11-year-old thought the gun was unloaded, according to police. He shot the 10-year-old, Dontae Bryant Jr. twice, in the shoulder and arm. The wounded child was reported to be in stable condition at a hospital Monday afternoon. The Tampa Bay Times is withholding the name of the 11-year-old because of his age.Strickland was supervising the children at the time of the shooting, investigators said. He was arrested on charges of aggravated child abuse with culpable negligence and being a delinquent in possession of a firearm. He was taken to the Juvenile Assessment Center.IN HARM'S WAY: Gun injuries and deaths among Florida kids have spiked. "It could have been a very tragic situation," said St. Petersburg police Maj. Shannon Halstead. Police did not say what kind of gun was used or release other details about the incident.The police department's community intervention director Rev. Kenneth Irby was called to the scene and will work with the families and children involved in the incident.