Downing Street backed calls for Fifa to investigate the incident, with the premier minister's authoritative spokesperson saying: "The World Cup mightiness not beryllium ours, but the Falkland Islands decidedly are. Our committedness to the Falklands volition ne'er waver."
No 10 added that immoderate imaginable enactment against Argentina players who unveiled the banner was "a substance for Fifa", but echoed the presumption of Business Secretary Peter Kyle that satellite football's governing assemblage should investigate.
For its part, the authorities of the Falkland Islands said it was "disappointed but not surprised" astir the banner and it hopes Fifa volition "sanction each behaviour of this quality successful enactment with its ain rules".
"We bash not privation to spot authorities being brought into sport" a connection added.
"Nor bash we privation the Islands and their radical to beryllium utilized arsenic a governmental shot successful each speech astir England and Argentina".
In 2013, the radical of the Falkland Islands voted overwhelmingly successful favour of remaining a UK overseas territory.
Of 1,517 votes formed successful the two-day referendum - connected a turnout of much than 90% - 1,513 were successful favour, portion conscionable 3 votes were against.
Argentina vice-president Victoria Villarruel posted connected X aft Wednesday's triumph that "it wasn't conscionable different match" alongside a video of what appeared to beryllium Argentine soldiers.
"The Falklands are Argentine," Villarruel posted. "They banned bringing them to the stadium and forgot that we transportation them successful our humor and our hearts."
Argentina players besides sang chants which referenced the Falklands and Argentina greats Maradona and Lionel Messi pursuing their melodramatic 3-2 triumph implicit Egypt successful the past 16.
A little but bitter warfare arose betwixt Britain and Argentina implicit the territory successful 1982.
A British subject task unit ejected Argentine forces, who had landed connected the Falklands to involvement a territorial claim.
The 74-day struggle led to the deaths of 255 British subject personnel, 3 islanders and 649 Argentine soldiers.
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