GREENSBURG, Ind. (AP) — Authorities say four people died when a small plane crashed as it was approaching a southeastern Indiana airport in foggy, misty conditions.

The Federal Aviation Administration says the crash happened Sunday evening about a mile south of the Greensburg Municipal Airport. All on board were killed. The FAA says the plane had been cleared to approach the airport but never arrived.

The plane apparently crashed in a field, then went down a steep hill before stopping in a wooded area. Greensburg police Capt. Bill Meyerrose said the weather hampered the search for the wreckage, which wasn't found for about four hours.

The victims were two Greensburg couples. Meyerrose identified them as 46-year-old Donald P. Horan, 44-year-old Barbara L. Horan, 45-year-old Stephen A. Butz and 42-year-old Denise L. Butz.