LANCASTER, Calif.—One person was killed and another person escaped with no injuries from a mid-air crash of two aircrafts Sunday in Los Angeles County.

The crash occurred about 12:50 p.m. Sunday, according to a watch commander at the Los Angeles County Sheriff’s Department’s Lancaster station.

One of the planes came down in the area of 47th Street East and Avenue F, and the other in the area of 60th Street East and Avenue G, Capt. Sheila Kelliher of the Los Angeles County Fire Department told City News Service.

It was unclear which plane was carrying the person who died. Federal authorities were looking into the cause of the crash.

“NTSB is investigating the midair collision of a Yakovlev Yak-52 and Nanchang CJ-6A near Lancaster, California,” the National Transportation Safety Board said in a statement Sunday afternoon.

The Yak-52 was described as a vintage Soviet-era aircraft, and the CJ- 6A a decades-old Chinese plane.