U.S. Customs and Border Protection (CBP) officers in Detroit have seized a gun, ammo and marijuana.
The seizure occurred on November 24 at the Windsor-Detroit Tunnel from a Canada-bound traveller.
According to CPB, a U.S. citizen was released following the seizure.
CBP is reminding travellers to have proper documentation if they're crossing the border with a firearm and to leave the drugs at home.