The Rail, Maritime and Transport union has been in dispute with East Midlands Railway since April.
Merseyrail staff who are members of the RMT union were expected to walk out from Saturday to Monday.
Members of the RMT union are in dispute with Merseyrail over their latest pay offer.
RMT union members oppose the voluntary introduction of a four-day working week with condensed hours.
Members of the Rail, Maritime and Transport Union walked out on Thursday for a second day of strike action.
Members of the Rail, Maritime and Transport (RMT) Union are due to walk out again on Thursday from 00:01 BST.
Transport for London apologises as commuters face another planned walkout on Thursday.
Members of the RMT union are on strike on Tuesday in a row over working hours, with further action planned for Thursday.
Drivers from the Rail, Maritime and Transport union are due to walk out on Tuesday and Thursday.
