KANSAS CITY, Mo. (AP) — Kansas City police say a 3-year-old boy who died last week was accidentally shot by his 5-year-old brother.

Police say Jermone L. Green was shot Thursday at the townhouse where he lived. Efforts to revive him were unsuccessful.

Investigators are trying to determine how the 5-year-old got hold of the gun. Several adults were inside the residence when the shooting occurred.

The Kansas City Star reports that the case has been forwarded to the Jackson County Prosecutor’s Office, which will determine whether criminal charges will be filed.