SAN DIEGO - A fighter jet returning to a Marine base after a training exercise crashed in flames in a San Diego neighborhood yesterday, killing three people on the ground,.

The pilot of the F/A-18D Hornet jet ejected safely just before the crash around noon at Marine Corps Air Station Miramar. Explosions rocked a neighborhood of half-million-dollar homes.

Three people were killed in a house where two children, a mother and a grandmother were believed to be at the time of the crash. Another person remained missing. *