No arrests were made, but marijuana was discovered in the Rihanna “Diamonds World Tour” caravan on Wednesday (March 20) at the United States/Canada border.

According to TMZ.com, a total of 10 buses were stopped at the Ambassador Bridge, which separates Windsor, Canada and Detroit. Inspectors smelled marijuana on one of the buses and initiated a secondary, bus-to-bus search.

No arrests were reportedly made, but one male was cited with a “civil penalty”.

Rihanna was not on any of the buses though.