Four Caribbean men – three Guyanese and a Trinidadian – have been implicated in what US law enforcement officials said was a massive terror plot targeting John F. Kennedy International Airport.

Three of the men have been arrested and one is being sought in connection with the plan to set off explosives in a fuel line that feeds the airport and runs through residential neighborhoods.

Arrested are Abdul Kadir, a former Member of Parliament in Guyana and Kareem Ibrahim of Trinidad. Both are being held in custody in Trinidad. Russell Defreitas, a U.S. citizen, native to Guyana and former JFK employee, was also arrested and is being held in Brooklyn where he is expected to be arraigned Saturday afternoon. A fourth man, Abdel Nur, of Guyana, was still being sought by US officials who believe he might be hiding in Trinidad.

Police in Trinidad called a press briefing for Saturday afternoon to give an update on the involvement of local law enforcers in nabbing the men.

U.S. Attorney Roslynn R. Mauskopf called the plot "one of the most chilling plots imaginable."

"The devastation that would be caused had this plot succeeded is just unthinkable," she said at a news conference Saturday.

All four men are accused of being members of a terrorist cell that planned to attack the airport, one of the nation’s busiest, by blowing up major fuel supply tanks and the pipelines.

Kadir, a Muslim, who reportedly quit his position in Guyana’s Parliament last year, was arrested in Trinidad for attempting to secure money for "terrorist operations," the international press reported Saturday. Muslims make up about nine per cent of Guyana’s 770,000 population.

US terror officials said they have been tracking the cell for more than a year and have received cooperation from their law enforcement counterparts in Trinidad in tightening the noose around the men.

The arrests mark the latest in a series of alleged homegrown terrorism plots targeting high-profile American landmarks.

A year ago, seven men were arrested in what officials called the early stages of a plot to blow up the Sears Tower in Chicago and destroy FBI offices and other buildings.