OZARK, Ark. (AP) - The Latest on a helicopter crash near an Arkansas music festival (all times local):

4:45 p.m.

Authorities have identified the pilot and two passengers who were killed when a sightseeing helicopter crashed near a music festival in western Arkansas.

Franklin County Sheriff Anthony Boen said pilot Chuck Dickson of Tulsa, Oklahoma was killed along with festival workers Sarah Hill of Austin, Texas and Marco Ornelas of Mexico in Sunday night's crash. The three were killed when the helicopter that had taken off from the Backwoods music festival crashed on Sunday night. Another passenger airlifted to an Oklahoma hospital was in critical condition.

Boen did not have ages for the three killed in the crash.

10:09 a.m.

Authorities say three people were killed and one was injured when a sightseeing helicopter crashed near a music festival in the Ozark Mountains in western Arkansas.

Franklin County Sheriff Anthony Boen said the pilot and two passengers were killed when the helicopter that had taken off from the Backwoods music festival on Sunday night. Boen says another passenger was airlifted to an Oklahoma hospital and was critically injured. The identities and ages of the pilot and passengers have not been released.

An Arkansas State Police spokesman says the helicopter was found about 500 yards (460 meters) south of the festival grounds on Mulberry Mountain.

Mulberry Mountain, which had hosted the Wakarusa festival for several years, is a popular site for multiday camping and music events.

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