Hopes of a major breakthrough in the rail dispute have been shattered after Network Rail workers rejected a pay offer.Members of the Rail, Maritime and Transport union (RMT) will now press ahead with two 48-hour strikes at Network Rail - and 14 train companies - from Tuesday and Friday.

Hopes of a major breakthrough in the rail dispute have been shattered after Network Rail workers rejected a pay offer.Members of the Rail, Maritime and Transport union (RMT) will now press ahead with two 48-hour strikes at Network Rail - and 14 train companies - from Tuesday and Friday.