A teenager has been arrested in Walsall by the National Crime Agency, as part of the investigation into a cyber security incident affecting Transport for London (TfL).

The 17-year-old male was detained on suspicion of Computer Misuse Act offences in relation to the attack, which was launched on TfL on 1 September.

The NCA is leading the law enforcement response, working closely with the National Cyber Security Centre and TfL to manage the incident and minimise any risks.