Delays of up to 35 minutes on CrossCountry and First Great Western trains between Liskeard and Plymouth due to signalling problem at Saltash.
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The game led to a penalty shoot out, with Peck scoring the winning goal and beating one of the world's most expensive youth clubs.
Severn Trent Water have apologised, saying their teams are working to "get things back to normal".
A bright start on Friday, although one or two showers will continue in the west.