Two crop dusting airplanes have collided near an airport in southern Idaho, causing them to crash to the ground. The Butte County Sheriff's Office says one pilot was killed and the other suffered life-threatening injuries. The crash was reported early Thursday afternoon near the airport in Arco, about 70 miles west of Idaho Falls. The sheriff's office says the National Transportation Safety Board and the Federal Aviation Administration were notified about the crash and the cause is under investigation. The names of the pilots involved were not released.
