St Vincent and the Grenadines police are searching for Trinidadian prisoner Desmond Pavy, who escaped from the Belle Isle Correctional Facility in St Vincent last weekend.
A prison official in the country said Pavy eluded authorities on February 22 and is still on the loose.
Pavy, 42, and fellow Trinidadians Jovel Espinoza and Terry Bannister were serving nine-year sentences on drug-related charges following a high speed boat chase between them and the Royal St Vincent and the Grenadines Coast Guard on May 24, 2011.
During the chase the men threw bales of marijuana into the sea, but 11 of these were recovered, totalling 472 pounds.
The men were sentenced in March 2012.
The prison official said Pavy is considered to be armed and dangerous, and a full investigation will be conducted into the matter.
The Trinidadian is the second inmate to escape from the facility, since it was opened in April 2012.
Colly Lowman of Georgetown, Guyana, who was serving time following a wounding conviction, allegedly escaped custody while on farm duties on December 6 last year.
He was escorted back to custody by attorney Grant Connell less than a week later, and an extra year was added to his three-year wounding sentence.
In November 2011 murder suspect Godwin Moses escaped from custody at Her Majesty’s Prison in Kingstown, St Vincent and was shot dead by police three weeks later in the Mt Wynne area of the island.