CAMERON, Mo. (AP) — Authorities say a biplane has crashed during an air show in northwest Missouri. No information on the condition of the pilot was immediately available.

The Missouri State Highway Patrol said it received a report just before 2 p.m. Saturday about the crash at the Cameron Air Show. The patrol referred questions to the Cameron Police Department, which didn’t immediately return phone messages seeking comment. The phone number for Cameron Memorial Airport Manager Eric Evans rang unanswered.

Federal Aviation Administration spokeswoman Elizabeth Cory said in an email that an investigation has started into the crash of the Pitts biplane and that the National Transportation Safety Board also was involved. The NTSB didn’t immediately respond to a phone call and email message seeking comment. No other details were immediately available.