Claims that leaving the European Union could save Britain £350m a week are "potentially misleading", the UK Statistics Authority has said.
Leave campaigners have been calling for the £350m to be pumped into the NHS rather than the EU.
But the claim has been attacked by Remain campaigners as "bogus" and a "desperate attempt to mislead people".
Vote Leave stood by the figure and said it will challenge the statistic authority's findings.
The £350m claim was questioned by UK statistics chief Sir Andrew Dilnot, in response to a letter from the Lib Dem MP Norman Lamb.
Thursday, 21 April 2016
BBC News: Vote Leave's £350m claim potentially misleading, says statistics chief