United States border agents have found marijuana on a bus with singer Justin Bieber's tour as it crossed into Detroit from Windsor, Canada.
The Detroit Free Press reported that US Customs and Border Protection spokesman Ken Hammond confirmed that the bus was stopped Sunday as it attempted to enter the US on the Ambassador Bridge.
The singer was not on the bus at the time and performed later that night at Joe Louis Arena.
Hammond says a police dog indicated the presence of drugs on the bus and that drug paraphernalia and a small amount of marijuana were found. He says the bus driver was cited and that the bus and its passengers were allowed to go.
Justin Bieber is lowered onto the stage during a concert at the Wells Fargo Center on July 17, 2013 in Philadelphia. (AP photo)