Oregon State Police are investigating an accidental drowning at Summit Lake in Klamath County.
Troopers said three women were swimming at the lake Monday afternoon when one of them drowned.
Emergency crews were called to the scene and tried to save the woman, but they were unsuccessful.
The victim's name will not be released until her family is notified.
Copyright 2012 KPTV (Meredith Corporation). All rights reserved.