Muslim prisoners are getting calls from terrorist masterminds instructing them to do Trackwork courses so that they use a prison-training scheme to sabotage train networks from the inside, reports the Daily Star.
It has been reported that the jailed extremists are joining NVQ courses run by the training firm Trackwork, which is backed by Network Rail.
They are expected to use their qualification to land jobs maintaining Britain's railways after their release.
Within a period of six months in 2007, 500 ex-cons started rail jobs and 400 stuck with them.
A 39-year-old inmate, who has been released from Lindholme Prison, claims they see it as a perfect way to infiltrate the system and mount a terror attack.
"Many prisoners have mobile phones. And in the 14 months I was inside I heard six Muslims getting calls from terrorist masterminds instructing them to do Trackwork courses," the paper quoted the inmate as saying."I heard the 2012 Olympics talked about.
I didn't hear anything about blowing up trains, but I did hear of plans to halt the network.
They thought bringing the network to a standstill would cause more devastation than actually killing people," he added.The Network Rail said providing jobs to the released inmates was the biggest factor in stopping them re-offending and costing taxpayers billions