GRAND CANYON NATIONAL PARK, Ariz.  — A 50-year-old Texas hiker is dead after park officials found him unresponsive in the Grand Canyon on Sunday.

What You Need To Know

  • A 50-year-old hiker from Texas died on Sunday at Grand Canyon National Park

  • The hiker has not been identified but was from San Angelo, Texas 

  • The hiker was located unresponsive and attempts to revive him with CPR were unsuccessful

  • A few weeks ago, a hiker from Austin, Texas, died while trying to reach the park's Phantom Ranch

The national park received reports of an unresponsive hiker on the Bright Angel Trail at 2 p.m., according to a news release from the National Park Service. Bystanders started CPR until medical personnel arrived, but all attempts to resuscitate the hiker were unsuccessful.

The hiker’s name has not been released, but NPS has said the hiker is from San Angelo, Texas, and was attempting to reach the rim from an overnight stay at Havasupai Gardens.

An investigation into the incident is underway, according to NPS.

On NPS’s website, the agency urges hikers to avoid hiking into the canyon during heat advisories and limit outdoor activities from 10 a.m. to 5 p.m. to reduce heat risk.

This is the second Texas hiker who has died at Grand Canyon National Park in recent weeks. 

On July 1, authorities reported 69-year-old Scott Sims, of Austin, died while hiking. 

Sims was trying to reach Phantom Ranch for an overnight stay via the South Kaibab Trail. Park officials received a report of a semiconscious hiker on the River Trail. He became unresponsive after that and attempts to resuscitate him with CPR were unsuccessful. 

Park officials said that during the summer, temperatures on exposed parts of the trail can reach over 120 degrees Fahrenheit in the shade.

The Associated Press contributed to this report.