Usher’s 11-year-old stepson Kile Glover has died after sustaining a major brain injury in a July 6 boating accident at Georgia’s Lake Lanier.

According to the Atlanta-Journal Constitution, Kile died Saturday morning at an Atlanta hospital. He was the son of Usher’s ex-wife Tameka Foster.

Kile and an unidentified 15-year-old girl were inner tubing when they were struck by a personal watercraft two weeks ago.

The accident continues to be under investigation.