Utah plane crash was likely caused by the pilot, a North Dakota lawmaker, becoming disoriented while taking off at night without runway lights, federal aviation investigators said.

The pilot did not use runway or landing lights after takeoff, resulting in his spatial disorientation and the eventual crash.

SCOTTSDALE, Ariz. (AP) — Arizona Diamondbacks left-hander Blake Walston will undergo season-ending Tommy John surgery. Diamondbacks manager Torey Lovullo made the announcement to reporters on Friday.