Network Rail has published its own report into the delay in completing engineering works which affected two of London's main stations over the Christmas period.
On 27th December, thousands of passengers using King's Cross and Paddington services suffered severe delays and disruption. Network Rail launched an investigation into what went wrong has today published a report into the chaos.
Mark Carne, chief executive, said: "A number of things went wrong in these two instances. In addition it is clear that our project back-up plans and the train service plans should have done a much better job in protecting the travelling public from our engineering problems.
"Over Christmas, we undertook the biggest programme of engineering and investment work ever, on train lines across the country. 99 per cent went to plan but in the case of King’s Cross and Paddington we let passengers down.
"I sincerely apologise for the disruption over the festive period and we are determined to learn the lessons so that we can continue to make the improvements the travelling public deserve."