Authorities say two Indiana residents were killed when their single-engine crashed in northern Michigan.
Officials in Kalkaska County identified the victims of Friday's airplane crash as Thomas Wolfe and Mary Wolfe. The relationship of the two was not given.
Sheriff Pat Whiteford says the plane crashed near U.S. 131 about 20 miles southeast of Traverse City. The plane crashed on private property without hitting any houses or other structures. Whiteford says Thomas Wolfe was flying the plane.
The cause of the crash wasn't immediately known.
The Federal Aviation Administration issued a statement saying it was investigating the crash with the National Transportation Safety Board.
