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Castle Rock woman killed in houseboat explosion on Lake Powell

LAKE POWELL, Utah -- A woman from Castle Rock was killed in a houseboat explosion on Lake Powell in Utah on Wednesday night, the National Park Service said.

Four other people were critically injured. The National Park Service said the houseboat was anchored on shore in Crystal Springs Canyon.

Kirsten Meyer, 52, died in the explosion that happened about 10 p.m. The four people who were injured were airlifted to hospitals in Salt Lake City and Grand Junction.

A juvenile male was treated and released at a clinic for minor injuries. The names of the people hurt were not released.

"There were 20 other people associated with this boating group. The cause of the explosion is under investigation. It was reported they were attempting to start a house boat generator when it suddenly exploded," the park service said in a statement.