Three people were arrested and one other was being sought on Saturday in an alleged terror plot at New York's John F. Kennedy International Airport, local media reported.

A former cargo worker at JFK Airport was taken into custody for suspected connection to a plan to blow up jet fuel tanks and pipelines at the airport.

The former cargo worker, originally from Guyana, had been under surveillance and allegedly met with a radical group in Trinidad.

Additional arrests have been made in Trinidad, sources said.

The planning for the plot was said to be going on for two to three years but sources claim the alleged plotters were nowhere near any ability to put it into place.

The Federal Bureau of Investigation was expected to provide more details during a press conference scheduled for 1 p.m. ET. (1700 GMT).