Authorities have arrested two people, one accused of fatally striking a U.S. Air Force Academy cadet with a jet ski on a northern Texas lake over the weekend and a male who allegedly helped her flee the scene.

Moore’s kayak was struck by a high-speed personal watercraft carrying two women, according to a release Wednesday from the Texas Parks and Wildlife department that credits the Texas Game Wardens, Grapevine Police Department and Homeland Security Investigations for the arrests.

On Tuesday, the U.S. Air Force Academy said 18-year-old Cadet Candidate Ava Moore was killed while kayaking on Lake Grapevine, Texas.Academy officials said Moore graduated from the U.S. Air Force Academy Preparatory School on May 19,