National Union of Rail, Maritime and Transport Workers (RMT) have announced further strike action, to take place on Thursday 20th, Saturday 22nd and Saturday 29th July 2023. It is unlikely that there will be any Barton Line, Brigg Line or Grimsby - Lincoln service on these dates. There is likely to be a limited service from Cleethorpes, Grimsby Town and Habrough to Sheffield. We will post service details when they are confirmed.
https://www.rmt.org.uk/.../rmt-to-strike-for-3-days-in-july/
This is in addition to the overtime ban by ASLEF - The UK Train Drivers' Union from 3rd to 8th July.