Senegal seized 238 kg of cocaine hidden in new cars on a ship travelling from Brazil to Angola, the customs authority said, the latest in a series of large seizures off the West African coast this year.
It said the cocaine was hidden in four cars the ship, anchored in Dakar, was transporting. It provided no additional details.
Drug smugglers use West Africa as a transhipment point for cocaine en route from South America to Europe.
The UN Office on Drugs and Crime said 3.4 tonnes of cocaine were seized in Africa in 2017, back up to 2013 levels after falling to 1.2 tonnes in 2015, although the data under-estimates the extent of drug trafficking on the continent.
Seizures in West Africa are on the rise with several unusually large quantities intercepted.
In January, Cape Verde seized 9.5 tonnes of cocaine in one of the region’s largest ever hauls. Two months later, Guinea Bissau recorded its biggest seizure of cocaine when it intercepted 789 kg stashed in a fish truck.
Senegal’s largest seizure came in 2007, when authorities seized almost 2.5 tonnes of cocaine worth more than $300 million (£236 million).