PHOENIX -- Four people were killed after two small planes crashed midair in Phoenix on Friday.
A pilot reported seeing the planes collide about 15 miles west-northwest of Deer Valley Airport around 10 a.m. PST, according to Ian Gregor with the Federal Aviation Administration.
One of the planes burst into flames.
Four people were killed, according to Larry Nuñez with the Phoenix Fire Department.
One of the planes appears to be a single-engine Piper aircraft registered out of Massachusetts.
The FAA and National Transportation Safety Board will investigate the crash.
Details will be updated as they become available.