Our latest coverage of the crash has moved here: NTSB investigation into deadly mid-air plane crash in Lancaster could take over a year
The planes went down around 12:50 p.m. according to the Los Angeles County Fire Department. One crash-landed at 47th Street and Avenue F, the other at Avenue G and 60th Street.
One pilot was pronounced dead at the scene and the other was able to land and walk away with no injuries.
It's unclear how or why the aircraft collided.