Full services on a busy commuter rail route are to resume after seven weeks of delays following a tunnel collapse.
Chiltern Railways' services have been severely disrupted after the closure of the line through Gerrards Cross in Buckinghamshire, following the tunnel collapse there on June 30.
The line will reopen on Saturday in time for a full commuter service on Monday, Network Rail said.
The tunnel is part of a new Tesco supermarket complex being built in Gerrards Cross.
NR said that since the collapse, Tesco and its contractors had removed more than 25,000 tonnes of earth and some 60 metres of tunnel.
It added that independent engineering experts had thoroughly reviewed the tunnel design, the building methodology and the earth used as infill, which all form part of the overall tunnel design.
They have agreed with Tesco and its consultants that the structure is safe for the passage of trains.
NR chief executive John Armitt said: "Now we are satisfied that the tunnel is safe, our engineers have moved in and will be working night and day, rebuilding the track and signalling damaged in the collapse."