Italian authorities have seized a record 5.3 tonne cocaine haul being transferred between ships off the southern coast of Sicily, police said on Friday.
The consignment had an estimated value of 850 million euros ($946 million) and five people have been arrested, the Guardia di Finanza said in a statement.
Police had been tracking a ship that sailed from South America and swooped in the early hours of Wednesday, when a surveillance aircraft spotted packages being thrown from its deck into the waters of the Strait of Sicily to be collected by a waiting fishing trawler.
They stopped the trawler and found large quantities of drugs in a hidden compartment behind some panelling on the vessel. Two Tunisians, an Italian, an Albanian and a French national were arrested.
Sicilian regional president Renato Schifani praised the operation as a blow against drug smuggling.
"Drugs are a scourge of our society fuelled by unscrupulous men who sow death by crushing hopes and destroying many families," he said in a statement.
In April, Italian police had found almost 2 tonnes of cocaine floating at sea off eastern Sicily which they believe had been left by a cargo ship for collection.
