Extra checks on hundreds of sets of points across Britain following Friday’s deadly train crash were complete last night as railway chiefs awaited the first report into the tragedy.
Network Rail said it had found “nothing out of the ordinary” during the 700 checks, which focused on similar sets of points to those at the centre of the Cumbria investigation.
Initial findings of the investigation into the derailment, which killed an elderly grandmother and injured several more people, could be made public in the next couple of days.
Network Rail chief executive John Armitt said: “The additional checks were a precautionary measure that any responsible organisation would carry out.
“Passengers should be reassured that our investigation has shown nothing out of the ordinary at any location we have visited."
The Rail Accident Investigation Branch (RAIB), which is investigating the crash, later confirmed that its first report would be published today.
A spokeswoman said the RAIB was publishing an interim report on the first 48 hours of the investigation.
“It will outline the established facts of the incident and any initial findings. Any other information will be made available as appropriate.”
The 700 checks were completed as investigators appeared to focus on work carried out in the lead up to the crash, which involved a Virgin Pendolino train.
Mr Armitt revealed that an inspection took place on the stretch of track in question about three weeks ago, around February 3.
But it is still not clear if another inspection had taken place since.
Network Rail’s maintenance regime, which looks at all parts of the track including points, includes a routine weekly line inspection.
Thomas Edwards, of the RAIB, said the investigation was focussing on four main areas.
They were the points themselves, the track between the points and the train, the vehicles and other factors such as signal boxes and maintenance depots.
He said it was too early to say whether poor maintenance may have been a factor in the accident.
Speaking at Grayrigg, the scene of the crash, he said: “We are capturing all of the maintenance documents, but it is too early to say how recently maintenance took place.
“This is ongoing as we speak. If you look at the track maintenance standard required, it is of regular patrolling and inspection on the tracks, and we are looking at whether that was carried out to those standards.”
Superintendent Martyn Ripley, of British Transport Police, described the investigation - which could last months to be completed in full - as “a logistical nightmare”.
He said: “One of the issues we are dealing with is getting specialist equipment onto the site to lift those carriages and to carry out a detailed search. That will not happen quickly."
Meanwhile the “hero” train driver Iain Black, aged 46, - a former civilian control room worker for British Transport Police - was continuing to recover in hospital.