An 11-year-old Indiana boy who shot and wounded his state-trooper father has been charged as a juvenile with attempted murder.

The South Bend Tribune reports that St. Joseph County prosecutors filed a petition alleging delinquency for attempted murder, the juvenile equivalent of a criminal charge.

Authorities say the Matt Makowski, who was off-duty at the time, suffered a single gunshot wound to his lower extremities on Feb. 21. The trooper was at home in Granger, near South Bend, at the time of the shooting. He was hospitalized and his condition had improved as of last week.

The prosecutor’s office said it wouldn’t release details about the gun used, including whether it was the trooper’s service weapon, because of the ongoing investigation.

The Associated Press contributed to this story.