A 70-year-old man has died after collapsing while returning from a five-day hike in southeastern Utah, authorities said.

The Kane County sheriff's office was responding to an emergency incident in the Glen Canyon National Recreation Area around 9 a.m. Wednesday when they learned the man was hiking and rafting with a group in the Escalante Canyon for multiple days, KUTV-TV reported.

Six people, including the man, were hiking out of the canyon to where their vehicle was parked when he collapsed, deputies said.

Members of the group administered CPR but were unsuccessful in reviving him, authorities said.

Deputies were told the man was in good health and enjoyed outdoor activities.

The state medical examiner’s office is expected to release an autopsy report.

Deputies did not immediately release the man’s identity. An investigation is underway.