July 10 (UPI) -- A 67-year-old man from Texas has died while hiking the Grand Canyon, according to park rangers who are warning of extreme heat.
The hiker from Alvarado, Texas, was found unresponsive at about 11:50 a.m. local time Tuesday on Arizona's South Kaibab Trail, the National Park Services said Wednesday in a release. The cause of death was not released.
Bystanders performed CPR while park medical personnel responded, but all attempts at resuscitation failed, it said.
According to initial reports, the man was attempting to reach the Colorado River for an overnight stay at Phantom Ranch and had turned around and was making his way back up the trial when he suffered the medical emergency.
The incident occurred as temperatures are dangerously high in the Grand Canyon.
