Police say the man has been arrested under Section 41 of the terrorism act, and that he remains in police custody.
Metropolitan Police Assistant Commissioner Mark Rowley told reporters on Friday that police believe the explosion, at about 8:20 a.m. local time, was caused by an improvised explosive device. ISIS claims it was carried out by an affiliated unit.
Emergency services attend the scene Credit REUTERS
May said in a televised statement that armed police and members of the military would be seen on the streets in the coming days.
"This is a proportionate and sensible step which will provide extra reassurance and protection while the investigation progresses", she added. The other was a bombing in May at a pop concert by United State star Ariana Grande in Manchester which killed 22 people, including several children.
Bulldogs beat down No. 12 LSU 37-7
The beatdown casts serious doubt on the notion that the continuity brought by the Orgeron hire would pay immediate dividends. After the game, several players said they were embarrassed by the lack of discipline and number of penalties by the Tigers.
The teen will be brought to a south London police station for more questioning, reports said.
The search had been on for the suspect or suspects involved in leaving a bucket packed with nails and the explosive triacetone triperoxide (TATP) on a busy train during Friday's morning rush hour.
A "fireball" and "wall of flame" ripped through the London Underground service, with commuters and schoolchildren on the District Line at Parsons Green fleeing in terror after a blast shortly after 8am.
Evian Championship: Moriya Jutanugarn hopes to emulate sister
The tournament has been reduced to a three-round event after rain and strong winds caused the first round to be abandoned.
Chelsea urged supporters travelling to Stamford Bridge for the match against Arsenal on Sunday to take extra precautions following the attack at Parsons Green, which is near the club's stadium.
The Most Intriguing NBA Rookies
So far he’s performing as expected, notching impressive rebounding and blocking numbers in heavy Summer League minutes. It’s undeniable at this point that this rookie class is going to generate a lot of attention for a long time to come.