A seasonal National Park Service ranger has died after falling into a crevasse while on a climbing patrol on Alaska’s Denali, also known as Mount McKinley, the NPS says. The ranger, identified by multiple outlets as Robin Pendery, fell on Thursday during work on the mountain. The park service said rescue efforts were immediately launched but were not successful.

Reporting across outlets describes the incident as occurring near the mountain’s higher elevations, with Fox News specifying the area near the 14,000-foot camp. Additional coverage notes that the fall happened while Pendery was climbing as part of patrol duties.

Several sources also place the death within a broader context of recent fatalities on Denali/Mount McKinley. The Oregonian notes the incident comes about a week after three climbers from a Latvian mountaineering expedition died after falls near a treacherous pass on the mountain.

The NPS is the primary source for the details of the fall, the ranger’s identity, and the timing, while outlets reiterate that the incident underscores risks associated with climbing and mountaineering on the peak.