Thousands of train passengers faced big problems in the Pennines.
They had to use buses instead of trains for more than six hours today because of a broken rail.
Engineers discovered the broken rail in the Standedge Tunnel late this morning and it had to be closed to all traffic.
The rail services through the tunnel were resumed shortly after 5pm but trains had to travel slowly over the temporary repair.
Engineers are due to go back into the tunnel tonight to carry out further repairs, which is again likely to mean service disruptions.
More than 100 train services between Manchester and Huddersfield by the problems.
It meant that all Northern Rail and TransPennine services using the tunnel have had to be replaced by buses.
A fleet of buses and coaches was used to ferry passengers between Huddersfield and Greenfield, and to stations along the line.
Engineers from Network Rail were called in and are working at the tunnel, which carries the lines deep between the Pennine hills.
The problem was discovered shortly before 11.30am and trains were halted.
A Northern Rail spokesman said: “It turned out to be a major problem and engineers are now on site.
“Due to the broken rail near Marsden, our services between Manchester and Huddersfield are being disrupted.
“Engineers have completed a temporary fix on the broken rail. This means that services will start to run again. Trains will go through the tunnel at a reduced speed until the engineers go back in overnight to complete the full fix.
“We have been using buses between all the stations between Huddersfield and Greenfield and also had others on standby at Stalybridge”.
