DETROIT (AP) — U.S. border agents say they found marijuana on a bus with singer Justin Bieber’s tour as it crossed into Detroit from Windsor, Canada.

The Detroit Free Press (http://on.freep.com/18O0eS3 ) reports that U.S. Customs and Border Protection spokesman Ken Hammond confirms the bus was stopped Sunday as it attempted to enter the U.S. on the Ambassador Bridge.

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The singer was not on the bus at the time and performed later that night at Joe Louis Arena.

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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.

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