A New York cleric, who tipped off al Qaeda-trained militant Najibullah Zazi as he plotted to bomb the city's subways last year, has pleaded guilty to lying to US federal agents about his contacts with the terror suspect.
Assistant United States attorney, Jeffery H Knox, speaking in Federal District Court in Brooklyn on Friday, revealed that two senior Al-Qaeda leaders were instrumental in developing this plan.
The Federal Bureau of Investigation arrested two men on Friday on charges of plotting explosions in New York City as a part of an "ongoing terror investigation" trailing the arrest of an Afghan national on similar charges last year.
An Afghan national, arrested for allegedly plotting Mumbai-type attacks on US cities, has been indicted by a New York court for conspiracy to use weapons of mass destruction.
An accomplice of Al Qaeda associate Najibullah Zazi has pleaded guilty to a plot that involved bombing New York City subways and also admitted to a conspiracy to use weapons of mass destruction.
A 29-year old Pakistani man was on Tuesday sentenced to 40 years in prison by a United States court for plotting terror attacks with Al-Qaeda that targeted a crowded shopping centre in England and the New York City subway system.
Raising fears over the growing threat of home-grown extremism, three Americans, including two women, have been charged in separate cases of plotting terror strikes on United States soil using "weapons of mass destruction" and of travelling to Pakistan to fight against American forces.