One person was killed and another injured after a rockfall from El Capitan in Yosemite National Park happened Wednesday afternoon, according to the National Park Service.

The rockfall happened just before 2 p.m. from El Capitan, a granite monolith above Yosemite Valley. The release point appears to be near the Waterfall Route, a popular climbing route on the East Buttress of El Capitan, according to NPS.

This area is where Horsetail Fall flows in winter and spring conditions.

Yosemite National Park Rangers and Yosemite Search and Rescue crews are on scene investigating, according to NPS. There is also a park helicopter assessing the situation.

The size of the rockfall has not yet been determined. 

NPS said one person has been confirmed dead and Yosemite park rangers are working to transport the injured person to receive medical care.

This is the climbing season in Yosemite National Park and there are many climbers on El Capitan and other climbing routes in the park.

Yosemite National Park remains open and visitor services are not affected, according to NPS.