Transport Secretary Heidi Alexander gave a significant update on the costs and timetable of the High Speed 2 (HS2) rail project, which has suffered major delays and spiralling costs

Heidi Alexander will tell the Commons that delivering the beleaguered high-speed rail project may cost triple the £32.7billion price tag it was originally given in 2011.

Ministers will not set an exact target date for the completion of HS2 after the final deadline for the long-delayed project was repeatedly missed