The cocaine bust is the second bigegst of the year on Saint Martin.
French authorities on the Caribbean island of Saint Martin seized 285 kilograms of cocaine worth some €24 million.
Gerald Darmanin, France's minister of public action and accounts, said the bust took place on Monday when coastguards approached a boat in territorial waters near Saint Martin, an island 1,500 kilometres east of Cuba that is divided between France and the Netherlands.
"During the boat's eventful inspection, two of the three passengers fled by diving into the sea with the aim of making it to shore. The pilot, then alone on board and very violent, tried to oppose the inspection," the statement said.
"Onboard, customs officers found several bundles of a total weight of 285 kgs, with a street value of €24 million."
A second fast boat "immediately" turned around upon seeing the French authorities.
The cocaine bust is the second biggest of the year on the island. This summer authorities seized a tonne and a half of the drug onboard the "Le Livie" sailboat despite the two passengers attempting to destroy their cargo by setting fire to their vessel.
Caribbean islands became a hub for drug trafficking into the US and Europe in the 1990s.
At the beginning of the 21rst century, traffickers eschewed the area in favour of the Central America-Mexico route.
But coordinated counter-narcotics efforts have led to traffickers returning to the Caribbeans. According to the International Drug Policy Consortium, cocaine imports into the US from Caribbean islands jumped from 4% in 2011 to 16% in 2013.
Saint Martin's unique situation — the northern half is a Dutch territory known as Sint Maarten while the southern half is France's Saint Martin — makes it particularly vulnerable.