A couple from Nottinghamshire who won £4.4m on the lottery say they now plan to go on a cruise to celebrate their 30th wedding anniversary.
Jim Emerton, 55, and his wife Maureen, 56, matched all six numbers in Saturday's draw.
They told a press conference that they thought it was an April fool.
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The House of Commons Petitions Committee has said they will keep an eye on the petition and are concerned about fraudulent signatures.
Oliver Healey, from Telford said he set up the page before the referendum and it has now been "hijacked" by Remain backers.
Your afternoon weather update with Helen Plint.