Two days of strike action have been announced affecting schools next month.

GMB has revealed staff in non-teaching roles will take action in school and early years centres in a dispute over pay.

The union has warned parents and pupils to expect disruption.

Glasgow is one of the 10 local authority areas affected.

The strike days have been set for Wednesday, September 13 and Thursday, September 14.

GMB said members voted to support industrial action after Cosla, representing local authorities, refused to revise the offer or ask the Scottish Government for support.

School and nursery workers in catering, cleaning, pupil support, administration and janitorial services will take part in the strike.

The areas affected are Aberdeen, Clackmannanshire, Comhairle Nan Eilean Siar, Dundee, East Dunbartonshire, Falkirk, Glasgow, Orkney, Renfrewshire and South Ayrshire.

The ballot came after 94% of the GMB Scotland’s members rejected the councils’ offer of 5.5% in April branding it “unacceptable” when inflation has surged inflicting a cost-of-living crisis.

The union said the Cosla offer would mean a rise for the lowest-paid workers in Scotland’s councils £700 less this year than that offered to colleagues in England and Wales

Keir Greenaway, GMB Scotland senior organiser for public service, said: “The latest figures show that, despite rising wages, pay is still being outstripped by inflation.

“The pay offer to council workers does not come close to matching the surging cost of living and one that is worth less with every month that passes.

“Scotland stands on the shoulders of our local authority workers and the value of their work must be reflected in their salaries.

“Cosla has refused to seriously engage with our members during what has been a protracted, frustrating process. If they had, parents and pupils would not now be facing disruption.

“Cosla and Scottish ministers need to engage now or risk turning a crisis into a calamity.”