BBC's coverage of the Platinum Jubilee has come under fire after the Irish tricolour made an unexpected appearance during a concert held outside Buckingham Palace.
The UK's national broadcaster has issued an apology after the Irish flag was displayed to represent Ulster.
The green, white and orange tricolour was used when comedian Doc Brown spoke about being "proud to be British". However, this received huge backlash online as Ireland has not been a part of the United Kingdom since 1937 and became a republic in 1949.
READ MORE: Irish tricolour makes out of the blue appearance at Queen's Jubilee concert in big mistake
The montage saw Mr Martin refer to England's "three lions", the Welsh dragon and included both the Irish tricolour and Scottish saltire.
The Ulster Banner, the unofficial flag of Northern Ireland, is regularly flown at sporting fixtures in the province.
A BBC spokesperson said: "The incorrect flag appeared in a brief montage during Doc Brown's appearance last night.
"We apologise for the error, and the sequence will be edited on iPlayer."
Social media users were quick to share their thoughts online.
Terry Brennan, communications officer of Limerick Council, said: "@BBCOne did you just include the Irish tricolour in a song about being 'proud to be British'. Laaaddddssss!!!!”
Another Twitter user wrote: "What's that about, tricolour. Since when are we British?"
A third added: "Dear organisers of today's event, I really enjoyed the Platinum Party but the Irish tricolour shouldn't have been used to represent the UK."
However, Unionist politicians in Northern Ireland also voiced their frustration with the use of the flag.
DUP MP for East Londonderry Gregory Campbell said: "The Platinum Party at the Palace was a part of what will be regarded as an outstandingly successful recognition of Her Majesty's 70 years as the Monarch.
"It was unfortunate that in a very short video clip during the event when the four Nations that make up the United Kingdom were visually represented by logos or flags that the Irish Tricolour was used instead of the Ulster Banner.
"Hopefully those responsible will have realised their mistake and will ensure that in the event of any future occasion where the four Countries of the UK are to be visually represented, more care is taken to ensure a mistake like this one is not repeated."
TUV leader Jim Allister, who was elected as an MLA for North Antrim in last month's Stormont election, added: "Quite an appalling and wholly disrespectful blunder which contrasts with the professionalism of the range of Jubilee events.
"The lack of oversight, which permitted such a fundamental affront to this part of the UK, requires both explanation and apology."
Share your views on this story in the comments section
The criticism of coverage from the Platinum Jubilee came after an ex-officer of the Irish Guards, Jamie Lowther-Pinkerton, referred to his former regiment as the 'Micks'.
He said: "The Micks have this fantastic mix of guard's discipline and pursuit of excellence with their Irish irrational tenth, if I can quote Lawrence of Arabia."
Mr Lowther-Pinkerton was asked to elaborate on the phrase by the BBC presenter Huw Edwards.
The Welshman said: "You said a few minutes ago, Jamie, that the Irish Guards were affectionately known as 'The Micks', and some people watching may say that's not an altogether nice term, but it's worth underlining, that's what you are used to call yourselves?"
Mr Lowther-Pinkerton replied: "It's what we call ourselves, and actually, it's been a nickname for so long that any connotations that may or may not have been have worn off."
The phrase is considered offensive to many Irishmen and women.
Joe Dwyer, who works in Sinn Fein's office in London, said on Twitter: "The year is 2022… and a BBC presenter and someone from the British Army are explaining why "micks" actually isn't an offensive term for Irish people."
However, the Irish Guards official website notes the nickname is meant to be affectionate.
The website said: "The Irish Guards – known affectionately throughout the Army as 'The Micks' – is an Irish Regiment which has proven its loyalty and grit on many tough operations.
"Its soldiers have the privilege of guarding the Royal Family.
"They recruit from the island of Ireland, United Kingdom and beyond."
Get breaking news to your inbox by signing up to our newsletter .
