- Northern Line hit with severe delays – latest travel updates London Evening Standard
- Northern Line delays: TfL yet to identify fault behind signal failure The Times
- TfL urges commuters to ‘avoid’ entire Northern Line over severe delays – check if your line is running The Sun
- THIRD day of Northern line chaos as severe delays could last ‘until later in week’ Harrow Times
- London Underground commuters faced severe delays through morning and evening rush hour MyLondon
