"Around 7:10 PM on Wednesday night, an officer smelled weed coming from Justin's bus, which was parked in front of the Grand Hotel," said a 'rep for Stockholm police', according to US celebrity gossip website TMZ.

"When the bus left the hotel and headed toward the Globe Arena, the officer contacted a special narcotics unit, which issued a warrant to search Bieber's bus."

However, AP reported that the bus had been parked under the Globen concert venue in Stockholm when the search was conducted.

Officers also discovered a stun gun onboard the Canadian pop sensation's bus. There will apparently be no charges made for the 'small amount' weed, which was found on the floor of the vehicle, since no individual could be identified as the owner.

The incident occured on Wednesday night, according to the Associated Press. Bieber's tour has continued on to Finland, where he'll perform in Helsinki on Friday night.

i love lamp

— Justin Bieber (@justinbieber) April 25, 2013