Updated

Authorities say a private jet apparently experiencing mechanical trouble has crashed in an Indiana neighborhood, resulting in injuries.

Federal Aviation Administration spokesman Roland Herwig says the Beechcraft Premier I twin-jet had left Tulsa, Okla.'s Riverside Airport and crashed near the South Bend Regional Airport on Sunday afternoon.

Herwig says there's "an indication of a mechanical problem." He says injuries resulted from the crash, but he doesn't know if they occurred on the aircraft or on the ground. He says he doesn't know how many people were aboard the jet.

The neighborhood has been evacuated because of a gas leak.

Neighborhood resident Stan Klaybor says the aircraft clipped the top of one house, heavily damaged a second, and came to rest against a third. He says one resident hasn't been seen.