The temporary Post Office in Sudbury town centre has been forced into a sudden closure due to a "urgent" building works taking place.
The Post Office confirmed it had shut the unit in the Borehamgate Shopping Centre on Friday afternoon.
It is currently leasing the space from Babergh District Council after the closure of the previous branch in Market Hill.
The Post Office moved into the shopping centre last June.
A Post Office spokesman apologised to customers for the closure and directed them to nearby stores in villages close to Sudbury.
The spokesman said: “Sudbury Post Office has had to close at short notice today (17/3) due to urgent building works that are required.
"We sincerely apologise for any inconvenience caused by this temporary closure due to unforeseen circumstances.
"The Post Office has been operating on a temporary basis at Unit 8, Borehamgate Shopping Centre, since June.
"These premises are owned by Babergh District Council and we have been working closely with the council to make the building suitable for a permanent Post Office and shop.
"Preparatory work has recently begun. This has highlighted the need for urgent building work that needs to be undertaken now.
"We know how important a Post Office is to a community and we are currently looking to relocate Sudbury Post Office to a new temporary location as soon as possible.
"In the interim alternative Post Offices include Great Cornard, Great Waldingfield and Bulmer.
"We will update the community with details about the relocation of Sudbury Post Office when plans are finalised."
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