A helicopter crew from RNAS Yeovilton assisted sailors aboard HMS Lancaster seize 22 bales of pure cocaine from a speedboat near Puerto Rico, the Ministry of Defence has said.
The drugs, which have an estimated street value of £100 million, were handed over to the Coast Guard Cutter Sapelo and then the authorities in Puerto Rico.
The Royal Navy mobilised a Lynx helicopter, which is based at RNAS Yeovilton, and high-speed pursuit boat in order to intercept the speedboat suspected of smuggling drugs.
The Ministry of Defence said that the three people on board initially tried to dispose of the evidence by throwing the drugs overboard, but this was recovered by divers.
The suspected drugs smugglers ultimately cooperated with the Royal Navy.
More top news
A hospital in Plymouth will become the first in the UK to offer free do-it-yourself HIV testing kits.
The owners of an iconic hotel in Devon made famous by Agatha Christie want to install 200 solar panels, but some locals are appalled.
As Hollywood hit the red carpet for the "Fury" premiere on Sunday, Brad Pitt paid tribute to his unusual co-star; a WWII tank from Dorset.