CORRECTIONVILLE, Iowa (AP) -

Authorities have released the names of the three people on board a small plane that crashed in northwest Iowa this weekend.

The Woodbury County Sheriff's office says 70-year-old Gaylen Knaack, of Correctionville, was flying the plane when it crashed into a farm field 2 1/2 miles south of Correctionville Saturday evening.

Knaack's two passengers died in the crash, and Knaack sustained serious burns.

The passengers were: 53-year-old Lee Schroeder, of Oto, and 55-year-old James Smith, of Correctionville.

Former Anthon Fire Chief Mike Berning says Schroeder was a longtime firefighter who was scheduled to portray Santa Claus at a town celebration next weekend.

Knaack was taken to a Sioux City hospital and later transferred to a burn center in Lincoln. Saint Elizabeth spokeswoman Betty Thompson says Knaack was in critical condition Sunday.

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Two of the three people on board a small plane that crashed in northwest Iowa have been identified.

Authorities say Gaylen Knaack, of Correctionville, was flying the plane when it crashed into a farm field 2 1/2 miles south of Correctionville around 8 p.m.

Knaack's two passengers died in the crash, and Knaack sustained serious burns.

Former Anthon Fire Chief Mike Berning says longtime firefighter Lee Schroeder was one of the passengers killed in the crash. Schroeder was scheduled to portray Santa Claus at a town celebration next weekend.

Authorities have not yet identified the other passenger.

The 70-year-old Knaack was taken to a Sioux City hospital and later transferred to a burn center in Lincoln. Saint Elizabeth spokeswoman Betty Thompson says Knaack was in critical condition Sunday.