Staff at Lancashire County Council have been warned to keep out of a major building.
Workers using the East Cliff building were told they could not access it from the middle of last week until Monday, for “essential works” to the infrastructure.
An email seen by the Evening Post said following investigation by a contractor on Wednesday, “the preparatory work to undertake the essential maintenance has proven to be more considerable than originally anticipated due to the age of the building’s infrastructure”.
It said staff would not be allowed back in to the building until Monday, and said they could not access it to collect work items.
County Council bosses failed to answer why the building was closed, and issued the following statement:
Lisa Kitto, director of corporate services at Lancashire County Council, said: “We currently have contractors on site at East Cliff carrying out essential work to the building’s infrastructure, including its water services.
“We’re working hard to have the building open again as soon as possible, once this work has been completed.
“Council services that are normally run from here are being run from other council buildings. The building at East Cliff will reopen on Monday.”