Authorities in Senegal last week seized 238 kilos of cocaine that had been concealed in new vehicles on a boat at the port of Dakar.
The cocaine was discovered overnight in vehicles on a boat that had arrived from the port of Paranagua, Brazil.
A BBC report said the cocaine was packed in travel bags, hidden in 15 new cars at the port and were intended for Ghana and Germany.
Authorities say investigations are underway to identify the persons behind it but local media have reported that a foreign couple were among those detained for interrogation.
Seizures of cocaine of varying amounts are often made at the port of Dakar, the Senegalese capital.
According to the BBC, a record 2.4 tonnes of cocaine seizure in Senegal took place in July 2007 in the western part of the Mbour area on Latin Americans, including Colombians, an Ecuadorian and a Venezuelan. They had been arrested, tried and sentenced.
Cocaine, produced from coca leaves, mainly in Colombia, Bolivia and Peru, travels more and more by sea with regular stops in the Caribbean, Maghreb and West Africa.