Latest figures for Friday's train crash at Potters Bar show that seven people were killed and up to 70 people were injured, some of them seriously.
The cause of the crash is thought to be bolts missing from a set of rail switching points on the track near Potters Bar.
The Evening Standard reported today that Railtrack has admitted it patched up the points - which are around seven years old - involved in the crash.
Apparently concern surrounding the points led to a 20mph speed limit being imposed on the area for three months before it being given the all clear in December.
This report comes amid growing concerns that several safety warnings about the track were ignored.
A rail worker is said to have told police that he reported bolts missing from the points three weeks ago, but his letter was unanswered.
The general secretary of the RMT transport union, Bob Crow, said he believes the accident was the result of the track being in a state of poor repair, rather than a one-off act of sabotage. He added that four times as many workers are needed to check the tracks for safety.
The Mail on Sunday reported yesterday that train operators will be in more financial trouble if there is `Hatfield-style' disruption after the Potters Bar crash because they have been operating for months without insurance.
This came after the main insurer for UK rail operators, St Paul International, decided to stop providing consequential loss cover because the liabilities were escalating unreasonably.
Until the causes of the crash are more clearly determined the insurance implications will not be fully known. More news to follow.
