3 rescued from Alaskan volcano after helicopter ices over

Two researchers and their pilot were rescued Friday from a remote Alaska volcano after freezing rain left thick ice on their helicopter's blades.

Alaska State Troopers spokeswoman Megan Peters said the rescue came at about 5 p.m. Friday. The three were caught in a freezing rainstorm Wednesday evening.

Pilot Sam Egli, United States Geological Survey geophysicist John Paskievitch, and University of Alaska-Fairbanks researcher Taryn Lopez were not injured.

They were attempting to monitor volcano equipment when "the weather moved in," Egli said. The work is part of an assignment to also repair permanent monitoring equipment on volcanoes in the area known as the Valley of 10,000 Smokes.

Freezing fog enveloped the research area and iced over the helicopter's rotator blades.