An early morning fire in an employee dorm at Grand Teton National Park on Friday has left one person dead while dozens were treated or evaluated for smoke inhalation or other injuries.

Park officials said the fire in a dorm at Grand Teton Lodge Company's Colter Bay location was reported shortly after midnight. While the fire itself was contained to a single dorm room, adjacent rooms sustained smoke damage, a park release said.

The first responders used fire extinguishers in an attempt to suppress the blaze before fully-equipped park and county fire response teams could arrive.

"A Grand Teton National Park fire engine stationed at Colter Bay arrived within 10 minutes of the call for help. Firefighters with Engine 2 were informed that at least one person and possibly others were still inside the dormitory on the second floor," Grand Teton spokeswoman Jackie Skaggs wrote. "They quickly located and carried out one individual, who was unresponsive, and helped evacuate others from the building. Although CPR was initiated on the unresponsive person—and paramedics continued CPR for nearly one hour—efforts to revive him proved unsuccessful and he was pronounced dead at the scene. Four other people were treated for minor injuries and smoke inhalation."

One additional structural fire engine and three ambulances from Grand Teton National Park, plus one aerial ladder truck, one engine, and one water tender from Jackson Hole Fire/EMS arrived shortly after the first fire engine, and quickly joined the suppression efforts. Those additional fire resources were: Engine 1 from Moose HQ campus located 20 miles away; Engine 41 and Tender 47 from Station 4, located 10 miles away at Moran Junction; and Ladder Truck 16 from Jackson, located 35 miles away.

The fire was suppressed by 2 a.m. While most rooms were not affected by the fire, residents of the facility were temporarily housed in other locations as a safety precaution for the remainder of the evening, the release said.

The name of the deceased was being withheld until family notifications were made. The cause of the fire has not been determined. A joint investigation will be conducted by Grand Teton National Park with the assistance of a Jackson Hole Fire/EMS investigator and a State of Wyoming fire investigator from Cheyenne. Further details are not available at this time.