According to law enforcement sources, the pop star was taken into custody for his involvement in an incident in Miami Beach early this morning.
Bieber is currently at the police department, where he is being tested for drugs and alcohol levels, TMZ reports.
He will remain in custody while his case is booked and processed and his bail is set.
It is thought that traffic police initially stopped the star for drag racing in a yellow Lamborghini. After speaking to the singer and getting him to take a sobriety test, they determined that he was driving under the influence.