Drugs and a stun gun have been found on board Justin Bieber's tour bus, Swedish police have said.
An officer on crowd duty smelled marijuana on an empty vehicle outside the Stockholm hotel where the pop star was staying just before his concert in the capital on Wednesday night, police spokesman Varg Jyllander told Sky News.
He said drugs police were alerted and followed the bus to the venue before searching the empty vehicle after around 10 passengers - including Bieber - had entered the arena.
Mr Jyllander: "They found a small amount of drugs and a stun gun.
"Now the drugs are sent over to the forensics lab and before we have the analysis results we won't (comment further). It was a short search for around half an hour. "There is no suspect at the moment. The crew left and took the bus, but the investigation is still going on.
"It was a small stun gun and in this country you need a permit to carry one or have one and they hadn't."
He said testing the drugs was "not a high priority" and that it could be some days before the results are known. Mr Jyllander added that the singer and his entourage were free to leave the country.
Bieber is travelling Europe on his 'Believe' tour and is due in Finland for a concert on Friday.
It is the star's latest in a series of brushes with controversy during the tour.
He was criticised earlier this month after a museum dedicated to famous Holocaust victim Anne Frank said the 19-year-old had written that he hoped the young Holocaust victim would have been a 'belieber' - the word used by his fans to describe themselves.
WARNING: Everyone deserves to know what is going on. Some need proof, others have faith. Peace be with you.