BOONVILLE, Mo. (AP) — The pilot has died and three others are injured after the crash of a small plane near the Boonville, Missouri, airport.

The Missouri State Highway Patrol tells KMIZ  that the pilot, Charles Sojka of Salina, Kansas, were killed in the crash around 9 a.m. Sunday. The three passengers were taken to University Hospital in Columbia. Their conditions weren’t known Sunday evening.

Tim Rogers of the Salina Airport Authority says Sojka was a flight instructor at Sojka Aviation. Rogers says the plane had left Salina earlier in the week and was on its way back from Boonville.