TRAIN services between Glasgow and Inverclyde will be disrupted tomorrow due to strike action by signalling staff.

Some trains will be completely withdrawn, while others will operate a reduced service as Network Rail workers take industrial action over how staff are promoted.

Cathcart Circle services will not operate on Christmas Eve and services via Maxwell Park will have just one train per hour. Services via Queen's Park will operate three times an hour. A spokeswoman for ScotRail said: "This action is beyond the control of ScotRail and we apologise for any inconvenience caused. We have published a summary on our website and put up posters at stations. Everyone should check their journey before they set out, in particular noting their last train home."

Gourock services will also be hit in the strike, with trains reduced from three per hour to two. These will depart Gourock at six and 36 minutes past the hour and leave Glasgow Central at five and 35 minutes past the hour. Barrhead, Paisley Canal and Whifflet services will be cut from two to one per hour. Services from Barrhead will depart at 27 minutes past the hour and leave Glasgow Central at 57 minutes past.

Trains will depart Paisley Canal at 30 minutes past and Glasgow Central at eight minutes past. Whifflet services will leave at 36 minutes past and depart Glasgow Central at 46 minutes past.

ScotRail said extra carriages will be added to trains where possible.