 The US Coast Guard detained a semi-submersible on 12 November 2017 off the coast of Texas carrying of cocaine, and on 13 November the US Coast Guard located and seized another one off the coast of Panama.It was carrying 1.72 tonnes of cocaine.On 24 November, 2019, Spanish police apprehended a 20 m semi-submersible off Galicia, Spain containing 3,000 kg of cocaine.