Peace campaigners have welcomed reports that the US military has withdrawn its last nuclear weapons from Britain.
The Federation of American Scientists said in a report 110 nuclear bombs were removed from RAF Lakenheath in Suffolk.
The US military said it was policy not to confirm or deny the presence of nuclear weapons at Lakenheath.
Kate Hudson, from the Campaign for Nuclear Disarmament (CND), said: "We would like official confirmation from the government that this has happened."
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A total of 110 tactical nuclear bombs have been removed
She added: "We believe an open admission will be a confidence-boosting measure for future disarmament initiatives."
The report's author Hans Kristensen said the move had happened in the past few years.
Mr Kristensen, an expert on the US nuclear arsenal, said the withdrawal of the bombs as part of a general strategic shift since the end of the Cold War.
The Suffolk base has been the site of many protests over the years, mainly due to the claims that nuclear bombs were stored at the base.