Theresa May's D-Day tweet deleted after getting date of the landings wrong

A tweet by Theresa May has been deleted after it got the date of the D-Day landings wrong.

The post appeared briefly this morning on the Prime Minister's Twitter account as she prepares to commemorate the anniversary of the invasion with 15 fellow world leaders.

It said: "Today marks 75 years since the D-Day landings. This was the beginning of the end of World War Two."

But although the go-ahead was given on 5 June 1944, the landings themselves began early on 6 June 1944.

The tweet, as well as a post on the 10 Downing Street official account, has since been deleted. Downing Street declined to comment.

It comes ahead of a major ceremony in Portsmouth, with 15 world leaders, to commemorate the 75th anniversary of D-Day at the culmination of the President's State Visit.

Mrs May will join the Queen and US president Donald Trump alongside 300 veterans to mark the forthcoming anniversary.

Some 60,000 members of the public are expected to attend the Portsmouth Naval Memorial on Southsea Common for the event which marks the 75th anniversary of the biggest amphibious invasion in military history.

Considered a turning point in the Second World War, Operation Overlord saw thousands killed and injured after it launched on June 6 1944.

Mrs May will be making her final official appearances as the British Prime Minister during the D-Day commemorations which continue on Thursday across Normandy.

Jim Booth at preparations for today's D-Day 75 National Commemorative Event on Southsea Common (Adam Gerrard / Daily Mirror)

Meanwhile, hundreds of veterans are flocking to northern France and Portsmouth as well as to events around the country to mark the occasion.

160,000 Allied troops landed at Normandy on 6 June 1944, signalling the beginning of the end of the war in Europe.

Sixteen nations have now agreed a Proclamation pledging "the unimaginable horror of these years is never repeated."

The text has been agreed by the 16 countries attending the Portsmouth D-Day75 commemorations.

They are Australia, Belgium, Canada, Czech Republic, Denmark, France, Germany, Greece, Luxembourg, Netherlands, Norway, New Zealand, Poland, Slovakia, the United Kingdom and the United States of America.