Hard drives containing Beyoncé’s unreleased music and several other items were stolen from a car that had been rented by her choreographer during a Cowboy Carter tour stop in Atlanta last week, according to police.

Two members of Beyoncé’s team said that their S.U.V. was broken into on July 8, just before a series of concerts in Atlanta, the authorities said. The police said a suspect had emerged.

Devices containing music, set lists and tour plans were allegedly stolen from a rental SUV during the megastar’s “Cowboy Carter” tour.