A tree fell onto a dining hall at at Camp Tawonga in the community of Groveland.
Cal Fire says at least one person has died.
Several others were injured in the incident and four were reportedly airlifted to the hospital.
Stay with CBS47 updates on this late-breaking news.
Copyright 2013 cbs47.tv Nexstar Broadcasting, All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.