Justin Bieber Smoking Weed in Sweden? Pot Bust on Tour Bus: Narcotics, Taser Confiscated After 'Strong' Marijuana Smell, Biebs Hangs with Lil Za, No Arrests

It looks like Justin Bieber may be in trouble with pot yet again. According to TMZ, Biebs' tour bus was raided in Stockholm, Sweden on Wednesday evening (April 24) after police discovered a "strong smell" of marijuana permeating from the vehicle. Authorities issued a search warrant and eventually found a "small amount" of narcotics (most likely weed) and a taser on the bus. No suspects have been named or arrested since the bus was empty, sitting in the parking garage of the Grand Hotel during the initial bust. Just hours before the incident, Bieber was spotted hanging out with his good pal (and smoking buddy), Lil Za.

Reports of Wednesday's tour bus bust first surfaced in a Swedish newspaper. Bieber had just arrived in Stockholm to perform a leg of his "Believe" world tour. A police spokesman told the Aftonbladet newspaper that authorities first detected a "strong smell" of marijuana coming from the bus as they were patrolling the massive crowd that had gathered outside of Bieber's hotel at around 7:10 p.m. that evening.

TMZ later spoke with a rep for the Stockholm police department.... apparently once the bus left the hotel parking garage later that night headed for the Globe Arena where Bieber was performing, authorities contacted a special narcotics unit. A search warrant was promptly issued.

After the search, press officer Lars Bystrom explained to the Aftronbladet, "A colleague felt a strong smell of marijuana, like someone had been smoking in the bus. We carried out a search and we found a small amount of alleged narcotics. We also found an electroshock weapon that wasn't licensed."

Eyewitnesses report that panic broke out when the police were raiding the tour bus - people were allegedly yelling things like, "No weed!" and "Sh#t, the stash!"

The bus was not impounded, and no suspects have been identified.

Just hours before the bust, the "Beauty and the Beat" crooner was spotted dancing for the gathered crowd of fans with Lil Za outside their hotel before heading to the gig. Lil Za is one of the pals Bieber was caught blazing up with back in January...

Bieber and his peeps have yet to comment on the incident... the pop star's now headed to Helsinki for a show on Friday, April 26.