An Al Qaeda gang of British Muslims planned to carry out a 9/11 type attack in the country, The Telegraph reported Monday.
A Jihadist group, from Birmingham, were to target crowded areas to cause "mass death" in a terror plot that was set to be even more devastating than the 7/7 London bombings, Woolwich Crown Court was told.
Two of the alleged ringleaders had received terror training in Pakistan and made martyrdom videos to be released after they had "blown themselves up".
They were taught in bomb-making, how to use weapons and poisons before returning to Britain to recruit others for their plot, the newspaper said.
A total of 11 men and one woman were arrested by police on various terrorism charges last September.
The details emerged as the trial began Monday of the three central plotters.
Irfan Naseer, 31, Irfan Khalid, 27, and Ashik Ali, 27, all unemployed from Birmingham.
On Sep 11, 2001, four coordinated suicide attacks in the US left nearly 3,000 people dead. The attackers crashed two hijacked passenger planes into the World Trade Center in New York city, one at the Pentagon, Virginia, while another crashed on a field near Shanksville, Pennsylvania.