Police have charged a man with possessing an explosive substance with intent after a suspicious device was found on a Tube train.
Last Thursday, North Greenwich Underground Station was evacuated after staff reported finding a suspicious item on a train travelling eastbound on the Jubilee Line.
On Friday, a Taser was fired at Damon Smith, 19, when he was arrested in a north London street.
Scotland Yard said it has now charged Smith with making or possessing an explosive substance with intent to endanger life.
Last week, Met Police also attended an address in Newton Abbott, Devon, in connection with inquiries.
There they found a "suspicious" item which they later described as "not viable".
During the search, police evacuated the address and alerted Devon and Cornwall Police.
A controlled explosion was then carried out on the device.
Smith was initially arrested on suspicion of the commission, preparation and instigation of terrorism acts, under Section 41 of the Terrorism Act 2000.