Earlier today European Council President Donald Tusk shared on Instagram an apparently pointed Brexit letter from a six-year-old girl in London.

"Dear Mr Tusk, I live in Britain," the letter reads. "I know we are leaving the EU. But I think we should be friends."

The letter also included a drawing of a unicorn, a reference that has often been used by lawmakers and commentators to symbolize the UK approach to Brexit negotiations.

Tusk responded to the letter on his social media, writing: "We will always be friends, Sophie."

Guy Verhofstadt, the chief Brexit negotiator for the European parliament, also shared the letter on Twitter, adding that "sometimes it takes a child to put everything in perspective."

"Sometimes it takes a child to put everything in perspective," he tweeted. "What a terrible waste Brexit is.