Council boss David Panter said he was concerned about the effects of a one-day strike called for by unions later this month.

The Brighton and Hove chief executive has written to all staff members saying he regretted the action taken by Unison and the GMB.

He said: "We are concerned for employees and users of the council's services and regret this is happening against a background of management and union relationships, which are normally positive."

But Mr Panter said it was legitimate industrial action, due to take place on July 27, following a national ballot and not a strike against the council.

He stressed every employee had a right to decide whether or not to take part in the strike.

It has been called by unions in support of a national pay claim because they claim council workers are falling behind their counterparts in private firms.

Liberal Democrat councillors will will respect the strike and not take part in any council meetings on Wednesday.

They will concentrate on ward and community activities and not cross any picket lines or enter council buildings.

Group Leader Paul Elgood said: "We are happy to show solidarity with the council employees. They have a fair grievance and it is a shame action could not have been undertaken to prevent this. We will spend the time working in the local communities that we represent."