Trust the Yanks to get such a thing wrong.
Whilst lighting up landmarks in a nation's colours after it has suffered from a terror attack is a pointless exercise which does nothing to combat terrorism, One World Trade Center decided to get in on the act by having its spire lit up.
New York governor Andrew Cuomo announced on Tuesday that the skyscraper would be adorned in Belgian flag colours on Tuesday night, in a show of support for Belgium.
'Tonight, One World Trade Center will be displayed in black, yellow and red as we stand in solemn solidarity with the people of Belgium, just as they have done for us in the past,' Cuomo said in a statement.
'We join the world in mourning the victims of these attacks and remain committed to helping create a more just and peaceful world.'
As pictures of the spire were posted on Twitter, it appeared the building had been lit in the wrong colours.