SEDONA, Ariz. -- 3TV has learned the names of four people killed in a plane crash near Sedona on Sunday.

An online prayer request posted by a religious organization has identified the victims as Levi Wallace, of Arizona, Jonathan McGeary, of Arizona, Johanna Naber, of Canada, and Sabrina Giebelen, of Germany.

Authorities have not confirmed the names at this time.

According to information posted on the organization's website, the victims attended church Sunday morning in Flagstaff then went on a short flight to Sedona when their plane went down.

The single-engine plane crashed in Fay Canyon northwest of Sedona.

Yavapai County Sheriff's Office spokesman Dwight D'Evelyn said the crash was reported by hikers in the Bear Mountain area.

It's not clear who was flying the plane.

The National Transportation Safety Board is investigating to determine the cause of the crash.

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