The hunter killed by a grizzly bear last weekend in a remote part of Alaska's Wrangell-St. Elias National Park and Preserve was identified Thursday by park officials as a 22-year-old man from Ohio.

The death of Austin Pfeiffer late Sunday was the first recorded fatal bear attack in the park since it was established in 1980, the park said in a statement. Park spokesperson Jan Maslen said that officials were not releasing his hometown at the family's request.

Pfeiffer was hunting with a friend and they were salvaging meat from a moose they killed a day earlier when the attack occurred, the statement said.

National Park Service investigators determined it was a surprise attack and that Pfeiffer did not have ready access to a gun or deterrent, like bear-repellant spray, at the time.

Pfeiffer's friend had taken a load of moose meat back to the men's camp, about a half-mile (0.8 kilometers) away, while Pfeiffer stayed behind to prepare the next load, Maslen said.

As the friend was returning, he was charged by the bear within about 50 yards (46 meters) from the site of where the dead moose was and opened fire in defense in the bear's direction, Maslen said.

The bear left and the friend found Pfeiffer's body, she said. The friend asked to not be identified, Maslen said.