There will be a strike action in four council areas on Wednesday as employees walk out over pay disputes.

Some council workers in Glasgow, Renfrewshire, East Renfrewshire and Inverclyde went on strike for one day following a three-day strike in September.

A bigger pay rise is unaffordable, according to council body Cosla.

Catering, cleaning, pupil support, administration, and janitors are among the non-teaching staff involved in the dispute.

The primary schools in the four areas will generally be closed, but some secondary schools will be open to S4, S5 and S6 students.

It could be the 12th day in a row that students have missed because of strike action.

During the November-March teachers’ strike, some students lost as many as eight days in school, and in September, Unison staged a three-day strike across most of Scotland, resulting in a further three days lost.

In addition, council-run nurseries will be disrupted.

The action is also planned for four other council areas next week: South Lanarkshire, Dumfries and Galloway, Edinburgh and Fife.

Cosla’s pay offer would see the lowest-paid workers receive a raise of about £2,000 a year, while other staff would see a raise of at least 5.5%.

Unite and GMB, the other two main council unions, have voted to accept this offer, but Unison contends that a better deal is possible.

Unison Scotland’s head of local government Johanna Baxter said earlier this month: “The strength of feeling among Unison’s 91,000 members, who rejected Cosla’s latest pay offer overwhelmingly, is clear. It is their determination to keep fighting for a better pay offer.”

In a previous statement, Cosla said the proposal was “the extent of local government’s power”.

It is expected that council leaders from across Scotland will decide on Friday whether to implement this offer despite Unison’s opposition.