TfL still affected by 'ongoing cyber incident'

Transport for London, which is based at Palestra House in Southwark, said there was no evidence customer data had been compromised

Transport for London (TfL) has restricted its online services as its computer systems continue to be affected by a cyber attack.

The organisation said it took action including limiting access to some live travel information services via apps and its website, and preventing passengers from viewing their journey history for trips paid for by contactless cards.

TfL reiterated a previous statement that there was "no evidence" customer data had been compromised and there was currently "no impact" on its transport services.

Insiders had told BBC London the transport provider's backroom systems at its corporate headquarters were mainly affected.

Measures 'remain in place'

Live travel information services with limited access include train updates and TfL JamCams, which usually show live feeds of traffic on major roads.

TfL has also restricted access to the photocard portal - which allows customers to apply for travel concessions.

Earlier this week the Dial a Ride door-to-door minibus service booking system also remained unavailable, although TfL said essential bookings could now be made by phone and it was hoping to return to a full service "in the coming days".

Shashi Verma, TfL's chief technology officer, said: "We identified some suspicious activity on Sunday and took action to limit access.

"A thorough investigation is currently taking place and we are working closely with the National Crime Agency and the National Cyber Security Centre to respond to the incident.

"Internal measures to limit access remain in place and there remains no impact to our public transport services, and no evidence that any customer data has been compromised.

"We will continue to keep our customers and our staff updated on the incident as part of this ongoing work and thank them for their patience as we respond to this incident."