The Central Bureau of Judicial Investigation said the cocaine was found in a truck along with two dinghies near the port city of El Jadida, according to a statement carried by the official MAP news agency.
The authorities said initial information suggested the drugs had been shipped over from South America on a commercial vessel before being transferred onto a smaller fishing boat and brought ashore in Morocco.
Cocaine traffickers have developed new routes to Europe over the past decade. The drug is mostly sent from Central America via West African countries and more recently through North Africa, according to the United Nations Office on Drugs and Crime.
In recent years, the Moroccan authorities have reported increasing cocaine seizures, including a record 2.5-tonne haul in October last year.
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