The boy was identified by police as Kamanuwai Waiwaiole of Waiohinu. He was taken to Ka'u Hospital, where he was pronounced dead at 10 a.m.

Big Island police responded to an 8:15 a.m. report of a crash at the intersection of Wakea Avenue and Kahiki Street in the Discovery Harbour Subdivision and found the boy lying on the road with severe head injuries.

The two ATVs had been headed north on Kahiki Street toward Wakea Avenue when Kamanuwai's ATV ran into the ATV in front of him. The force of the collision ejected him onto Kahiki Street, police said.

Neither rider was wearing a helmet. Police believe speed played a factor in the crash.