LARKSPUR, Calif. (AP) – An anonymous tip led police in Marin County to a party bus loaded with teens and stocked with alcohol and drugs.

After stopping the bus Monday evening police found 33 teens with 30 empty and partially empty containers of hard alcohol, a case of hard lemonade, and a jar of marijuana. Prescription drugs were also located in a purse. Drugs and alcohol were also found in the bus driver’s compartment. He was arrested.

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Police say a teen who rented the bus online did not have to show any identification after making a cash payment of $900 for the bus rental.

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The teen with the prescription drugs was cited for possession of a controlled substance and marijuana, and possession of false identification cards. The teens were released to their parents.

The California Public Utilities Commission Transportation Enforcement Section has been notified about the incident.

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Copyright 2016 The Associated Press.