SAN DIEGO -- An F-18 military jet has crashed in a San Diego neighbourhood, sparking at least one house fire.

Maurice Luque, a spokesman for the San Diego Fire-Rescue Department, says it's not immediately clear whether anyone has been injured.

Television news footage shows one house and two cars on fire.

Ian Gregor, a Federal Aviation Administration spokesman, says the plane crashed shortly before noon today as it prepared to land at Marine Corps Air Station Miramar.

The crash occurred about three kilometres from the base.

Gregor says the pilot ejected.

Resident Scott Patterson told KNX radio: "We saw two big bangs ... The smoke came up. We don't know what it was."

The F-18 is a supersonic jet used widely in the U.S. Marine Corps and Navy.

Miramar, well known for its role in the movie "Top Gun," is home to some 10,000 Marines. It was operated by the Navy until 1996.