Justin Bieber was reportedly warned by police after insulting a female customs officer in Australia.

The Australian Federal Police recently confirmed a story by the Sydney Daily Telegraph that a member of Bieber's crew was arrested on suspicion of drug offences on November 24.

The unnamed 23-year-old will face court on December 6 over bringing cannabis into the country.

However, a 19-year-old was also warned by police for using inappropriate language whilst speaking to a customs officer.

The Telegraph report that the person in question is Bieber himself, who allegedly was initially detained after refusing to remove a hat and glasses.

It is claimed that he also called an interviewing officer a "female vagina". The 19-year-old was not charged over the incident.

Bieber is currently still in Australia and he performed a private show for an injured fan recently in Melbourne.