Three hikers have died in Grand Canyon National Park amid a period of extreme heat. Authorities are warning visitors about dangerously high temperatures expected to continue in the popular Arizona destination. The National Park Service has issued alerts advising individuals to limit strenuous activity and drink plenty of water. The identities of the deceased have not yet been released, but officials confirmed the deaths occurred on separate incidents. This incident highlights the risks associated with hiking in arid environments, particularly during summer months. Park rangers are actively monitoring conditions and providing assistance to visitors experiencing heat-related illness.