California ? Al Gore’s son was arrested early Wednesday on suspicion of possessing marijuana and prescription drugs after deputies pulled him over for speeding, authorities said.

Al Gore III, 24, was driving a blue Toyota Prius about 100 mph on the San Diego Freeway when he was pulled over about 2:15 a.m., Sheriff’s Department spokesman Jim Amormino said.

The deputies said they smelled marijuana and searched the car, Amormino said. They found less than an ounce of marijuana along with Xanax, Valium, Vicodin and Adderall, which is used for attention deficit disorder, he said.

“He does not have a prescription for any of those drugs,” Amormino said.

Gore was released from the men’s central jail in Santa Ana on Wednesday afternoon after posting $20,000 bail. Amormino said Gore had yet to hire an attorney.