The two dead were a married couple from outside the country, the Arizona Daily Sun reported Wednesday. The injured person was a teenager traveling with guardians. It was unclear if the teen was traveling with the dead couple.
"They were in the area of the overlook and several other people were also in the area where it occurred," Gerry Blair, spokesman for the Coconino County Sheriff's Office, said of the Tuesday incident.
The teenager was transported to a hospital and had non-life-threatening injuries, Blair said.
The identities of the two who were killed were not reported.