A retired New Jersey criminal justice detective collapsed and died while hiking Piestewa Peak on Sunday, Phoenix firefighters said.
The man "had some sort of medical issue and collapsed" on the Summit Trail, according to Phoenix Fire Department spokesman Capt. Troy Caskey.
Bystanders performed CPR, but by the time firefighters reached him, he had died, Caskey said.
The name of the victim was not released.
No other information was immediately available.
Stay with cbs5az.com and CBS 5 News for updates on this developing story.
[Text BREAKING to 23765 to get news alerts on your mobile phone]
Copyright 2013 CBS 5 (KPHO Broadcasting Corporation). All rights reserved.