Two ski patrol staff at Mammoth Mountain were caught in an avalanche while doing mitigation work after an atmospheric river dropped about six feet of snow in 36 hours, Mammoth Mountain officials said.

Mammoth Mountain officials said the slide occurred during avalanche mitigation work following a significant Sierra Nevada snowstorm, during which about six feet of snow fell in 36 hours.

Two ski patrol members were trying to mitigate the threat of an avalanche after a storm had dumped about 6 feet of snow on the mountain in 36 hours.

Two ski patrollers at Mammoth Mountain, California, were caught in an avalanche at approximately 11:30 a.m. today after nearly six feet of snow fell in 36 hours, according to a statement shared by the ski resort.

An avalanche at Mammoth Mountain injured two ski patrol officials. One of them was taken to the hospital with serious injuries.