First TransPennine Express and Northern Rail delays follow theft
Rail commuters faced delays of up to an hour after thieves stole copper cables in East Yorkshire on Friday.
The theft at Hessle, near Hull, led to signalling problems which caused delays to services from the start of the day between Hull, Doncaster and Selby.
Delays affected First Hull Trains, First TransPennine Express and Northern Rail train services.
A reward of £1,000 for information about the theft is being offered by Crimestoppers.
The Association of Train Operating Companies has called for tougher regulation of scrap metal sales.