BERLIN -- Justin Bieber had to leave a monkey in quarantine after landing in Germany last week without the necessary papers for the animal, an official said Saturday.

The 19-year-old singer arrived at Munich airport last Thursday. When he went through customs, he didn't have the documentation necessary to bring the capuchin monkey into the country, so the animal had to stay with authorities, customs spokesman Thomas Meister said.

Bieber performed in Munich on Thursday, beginning the latest leg of his European tour. He later tweeted: "Munich was a good time. And loud. The bus is headed to Vienna now. U coming?" He didn't mention the monkey.

The Canadian singer is giving several concerts in Austria and then in Germany over the next week.

Bieber had a trying stay in London recently. The star struggled with his breathing and fainted backstage at a show, was taken to a hospital and then was caught on camera clashing with a paparazzo. Days earlier, he was booed by his beloved fans when he showed up late to a concert.

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  • ©BAUER-GRIFFIN.COM Justin Bieber launches his new Christmas album 'Under The Mistletoe' and switches on the Westfield Stratford City Christmas Lights.

  • ©BAUER-GRIFFIN.COM Justin Bieber launches his new Christmas album 'Under The Mistletoe' and switches on the Westfield Stratford City Christmas Lights.

  • ©BAUER-GRIFFIN.COM Justin Bieber launches his new Christmas album 'Under The Mistletoe' and switches on the Westfield Stratford City Christmas Lights.

  • ©BAUER-GRIFFIN.COM Justin Bieber launches his new Christmas album 'Under The Mistletoe' and switches on the Westfield Stratford City Christmas Lights.

  • ©BAUER-GRIFFIN.COM Justin Bieber launches his new Christmas album 'Under The Mistletoe' and switches on the Westfield Stratford City Christmas Lights.

  • ©BAUER-GRIFFIN.COM Justin Bieber launches his new Christmas album 'Under The Mistletoe' and switches on the Westfield Stratford City Christmas Lights.

  • ©BAUER-GRIFFIN.COM Justin Bieber launches his new Christmas album 'Under The Mistletoe' and switches on the Westfield Stratford City Christmas Lights.

  • Canadian singer Justin Bieber sings afte

    Canadian singer Justin Bieber sings after switching on the Westfield Stratford City Christmas lights in London on November 7, 2011. AFP PHOTO / MAX NASH (Photo credit should read MAX NASH/AFP/Getty Images)

  • Westfield Stratford City Christmas Lights Switch On

    LONDON, ENGLAND - NOVEMBER 07: Justin Bieber switches on the Christmas lights at Westfield Stratford City on November 7, 2011 in London, England. (Photo by Ben Pruchnie/Getty Images for Westfield Stratford City)

  • Canadian singer Justin Bieber sings at t

    Canadian singer Justin Bieber sings at the Westfield Stratford City shopping centre in London, after switching on the Christmas lights on November 7, 2011. AFP PHOTO / MAX NASH (Photo credit should read MAX NASH/AFP/Getty Images)