Sean Penn and Robin Wright’s son Hopper has been arrested for drug possession.

Nebraska State Patrol
Nebraska State Patrol — Nebraska State Patrol

The 24-year-old was taken into custody on Wednesday afternoon in Nebraska.

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A spokesperson for the Nebraska State Patrol confirmed the news to Entertainment Tonight: “At approximately 3:45 p.m. Wednesday, April 4, a Nebraska State Patrol trooper stopped a vehicle at the Giltner exit on Interstate 80 for failure to signal. The vehicle was a 1992 Volvo traveling westbound. During the traffic stop, the trooper detected drug activity and searched the vehicle. Troopers found 14g of marijuana, 4 amphetamine pills, and 3g of psilocybin mushrooms.”

Hopper was arrested on charges of possession of a controlled substance (psilocybin) and possession of marijuana (one ounce or less).

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Hopper is the youngest son of Penn and Wright.