A union representing thousands of Bradford Council workers who use the Exchange Post Office at Bank Street is expected to put in strong objections to its closure.

Up to 4,000 local authority staff are based in city centre offices including City Hall and Jacobs Well, close to the Post Office.

And they say they depend on the Post Office and many use it daily.

Unison's communications officer Gurjit Singh said: "People have told me they are concerned about it and it will go on the agenda for the next meeting."

He said they would also be supporting the postal workers' union and staff at Bank Street.

"I think its closure would be a disaster for Bradford and simply can't happen. There are thousands and thousands of city centre users who absolutely depend on it."

Politicians are also opposing the proposal to close the city's busiest post office in February.

Post Office Ltd says the proposal is purely for commercial reasons and is because the office is not making money.

Officials say although it is busy it may be simply because of people buying stamps and not using it for money-making transactions. It proposes making improvements at the smaller Darley Street and Sunbridge Road Post Offices.

Protesters say it does not make commercial sense to close a post office on the doorstep of the planned £300 million Broadway shopping scheme.

The closure is part of a restructure by Post Office Ltd of 9,000 of its offices. There are proposals to close Carlisle Road Post Office, Bradford; Bolton Woods Post Office; Tong Park and Woodbottom Post Offices, both Baildon; Ingrow Post Office, Halifax Road, Keighley, and Guard House Post Office, West Lane, Keighley.

The Communication Workers Union is expected to be at a public meeting which MPs and leading figures will be asked to attend.

Bradford Vision, which has members representing all leading organisations, is urging them to make their views known. And Bradford Centre Regeneration, the company leading the renaissance of the city centre, is expected to object.