Officials said on Sunday that a 67-year-old man was killed after a speedboat he was riding in capsized while he was on a trip down the Colorado River in Grand Canyon National Park.

According to authorities from the park, the boat capsized just after 2:00 p.m. on Saturday at Bedrock Rapid, which is described as a big island composed of rocks that serves as a dividing point between the river’s left and right channels.

According to the management of the park, emergency medical workers provided care to four persons before transporting them to the South Rim. According to the authorities, their injuries are not life-threatening.

The dead person was recognised as Ronald Vanderlugt by park authorities, although they did not immediately disclose his place of residence. They said that Vanderlugt was on the fifth day of his journey at the time.

According to authorities from the park, members of the river excursion group dragged Vanderlugt out of the water, observed that he was unconscious, and immediately started doing CPR on him. They said that park rangers were sent to the scene by helicopter; nevertheless, Vanderlugt could not be revived despite their best efforts.

According to John Dillon, executive director of the Grand Canyon River Outfitters Association, which represents outfitters authorised in the canyon, the boat tipped over in the fast when it came up against a boulder. The association represents outfitters who guide visitors through the canyon.

According to Dillon, a number of the travellers have made the decision to terminate their participation in the Western River Expeditions trip.

Both the National Park Service and the Medical Examiner of Coconino County will be conducting their own separate investigations into the matter.