Rihanna's tour buses were reportedly searched at the border of Michigan and Canada, and some pot was found on one of the buses!

But don't fret Riri fans--Rihanna isn't in any of the buses during the raid.

The R&B star's fleet of 10 coaches for her current Diamonds tour was stopped at the Ambassador Bridge between Windsor, Canada, and Detroit, Michigan, earlier this week. Reports say that the inspectors who stopped the buses noticed the smell of marijuana wafting strongly on one of the buses. They executed a secondary bus-to-bus search after that, and a drug-sniffing canine sniffed out the marijuana on one of the passengers.

Inspectors discovered an unnamed man in possession of a 'small' amount of marijuana and cited him with a civil penalty. After the search and the citation, the inspectors finally allowed the buses to enter the U.S.

The buses were on their way to Detroit, Michigan, where the latest leg of Riri's tour is set to happen.

Good thing the pop star wasn't on board during the search, because we all know the gutsy singer smokes the drug. She even brags about it and posts snapshots of her on Instagram while puffing on a couple of suspicious cigarettes.

"I'm posting pictures of myself smoking pot to tell the truth about myself. I've got so much to think about, why bring all this extra s**t by being dishonest?" Rihanna told Elle UK.

"Well, I Instagram everything about my life, whether it's smoking pot, in a strip club, reading a Bible verse--how crazy, I know!--or hanging out with my best friend, who happens to be Chris [Brown]," the 25-year-old singer added.

Meanwhile, after cancelling her shows in Boston and Baltimore due to a bout of flu and laryngitis, Rihanna is back on stage to finish the rest of her world tour.