A U-Haul truck carrying equipment for Vice President Joe Biden's campaign event in Detroit Monday was stolen this weekend, ABC News confirmed with United States Secret Service.

Ed Donovan, a spokesman for the USSS, told ABC News the truck carrying equipment was stolen between late Saturday night and early Sunday morning at the Westin Hotel in Detroit. He would not specify what kind of equipment was in the truck.

Biden's speech at the Metro Detroit AFL-CIO Labor Day Rally in downtown Detroit will still go on as planned starting at noon Monday.