BARABOO, Wis. (WTAQ) - Two people killed in a plane crash in Sauk County were identified Monday as a couple from Hillsboro – 58-year-old Robert Eigner and his 55-year-old wife Elaine.

Authorities said their single-engine plane crashed in the Baraboo Bluffs around 6:30 p.m. Sunday. Rescuers from at least a half-dozen agencies spent several hours looking for the craft in heavy fog and rough terrain – and they finally found it around 10:30 p.m. in a wooded area in the town of Honey Creek.

Officials said the Eigners were flying from an airport in the northwest Chicago suburb of Crystal Lake to Reedsburg – and it went down about 50 miles from their home.

The National Transportation Safety Board is investigating the cause.