Seven people were dead and nine were missing after mudslides wiped out campsites owned by the Greek Orthodox Church in Los Angeles.
Avalanches rolled down hillsides stripped bare by this season's devastating wildfires, onto the Saint Sophia Camp.
Greek Orthodox Church officials said the gathering on its property was not authorized since church leaders had been aware of the danger of mudslides.
Fifty-seven people were rescued from a second campground about five miles away, near the town of Devore. At least two homes were washed away in that area.
More than three inches of rain fell Christmas Day, the first rainy Christmas in the area in 20 years.
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