An offer of talks to try to resolve a dispute over driver-only trains at ScotRail has been dismissed as a "stunt".
The company has written to the Rail, Maritime and Transport union suggesting a meeting.
Union members staged the second of six strikes today.
ScotRail said it wanted to meet at its head office on Monday and proposed no change for conductors in 11 depots.
RMT general secretary Mick Cash said: "After months of playing games this latest stunt from ScotRail now attempts to split the staff involved in this dispute into separate groups. That is classic 'divide and rule' and makes a mockery of any serious attempt to get the talks process back under way.
"RMT is available for talks Monday morning at the independent conciliation service Acas, just as we have been ever since ScotRail sabotaged the last attempt to get Acas involved. The union repeats its call for the Scottish Government to get off the fence and drag their rail operators back to the table.
"The RMT is opposed to the extension of driver-only and driver-controlled services."
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