Authorities in Central Iowa have identified one of the two victims of a plane crash that happened late Friday morning, north of Indianola. Authorities said 22-year old Alex Michael Winter, of Indianola, died in the crash. The name of the second victim was still being withheld. Warren County Sheriff Brian Vos told KCCI-TV the Piper PA-11 crashed around 11:40 a.m. under what the Federal Aviation Administration called “unknown circumstances” in a field outside the airport.

The FAA and the National Transportation Safety Board are investigating the crash, which remains ongoing.