OWATONNA — Federal investigators will try to determine what caused a small plane to make a crash landing at the Owatonna airport.

Federal Aviation Administration spokeswoman Lynn Lunsford says investigators could arrive at Owatonna Degner Regional Airport as early as Monday.

Lunsford said the crash landing Saturday seriously injured one person and caused minor injuries to the two others on board. The FAA says the Piper four-seat plane went off the runway after landing and crashed.