Air and sea surveillance units detected a rigid-hulled inflatable boat loaded with packages typically used for hashish heading towards the River Piedras in Huelva in the early hours of 24 August 2017.[1] Officers from the Tax Agency’s Customs Surveillance unit, the National Police and the Civil Guard moved in as the boat reached a riverbank and unloaded the drugs into two off-road vehicles that drove to a nearby estate.[1]

Officers found 73 bales of hashish weighing about 2,300 kilograms inside the two vehicles.[1] Two men were arrested at the estate after one of them drove out and rammed the police cars, while three others escaped and the smugglers set the boat alight to remove it from police control.[1]

Searching the estate, officers seized an AO 17 assault rifle with magazines and more than 150 rounds plus a silenced semi-automatic pistol with ammunition, weapons the release says were used to protect the drugs.[1] The operation formed part of a special surveillance effort along the Andalusian coast against vessels in illegal activity.[1]