A teenager has been charged with creating a bomb after a suspicious device was found on a Tube train last week, leading to evacuation of a Tube station.
Nineteen-year-old Damon Smith, from south east London, is now facing charges of making or possessing an explosive substance with the intent to endanger life.
The charges come following the discovery of the device at North Greenwich station last week. Passengers were asked to leave the station as police were called.
Metropolitan Police officers arrested and charged the accused after undercover police operating in the city tasered him and held him on suspicion of preparing an act of terrorism.
The teenager is now due to appear in magistrates court in Westminster.
Smith is facing allegations that he made or acquired the suspicious substance between October 18 and October 21 contrary to the Explosive Substances Act 1883.
A home made device was discovered on a Tube train which had already passed under Westminster and Canary Wharf.
Smith had enrolled to study at London Metropolitan University, in North London, just a few weeks before the device was found.
Police officers have searched the council house where he lived in South Bermondsey. The 19-year-old shared the home with his mother Antonitza, 47.
According to neighbours, the mother and son moved to London five months ago from Newton Abbot in Devon where they had previously lived.
The student had enrolled on a course to study forensic science, although it appears he may have told some of his friends that he was on an IT programme.
A huge operation which was launched in Newton Abbot left residents shocked.
Police landed helicopters on sports pitches and evacuated families from their homes in the fear that there could be other devices.
His former neighbours spoke of their shock, saying the accused was both intelligent and lovely.
Smith had even spoken to neighbours about his ambition to become a police officer when he finished his university course.
However, images posted on social media reveal a different side to him. A black belt in Judo, he is seen in a mask, with knuckle dusters and with martial arts weapons.
He is also thought to have been a keen poker player, who often visited casinos with his mother.
A spokesperson for Scotland Yard police said officers worked tirelessly to follow up on all terrorism related leads.