U.K.'s National Crime Agency says it arrested a 17-year-old teenager who is suspected of being connected to the cyberattack on Transport for London, the city's public transportation agency.
Transport for London's (TfL) computer systems have been targeted in an ongoing cyber attack.
It said there was no evidence customer data had been compromised and there was currently no impact on TfL services.
Insiders have told BBC London they have been asked to work at home if possible, and that it is the transport provider's backroom systems at the corporate headquarters that are mainly affected.
