Pro-Brexit campaign sparks backlash after warning of an 'Orlando-style atrocity' if UK votes to remain

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A pro-Brexit campaign has sparked a furious reaction over a post on social media drawing links between the killing of at least 50 people in a US nightclub and the EU referendum debate.

The post, on the official Twitter account of the Leave.EU campaign, was denounced as "shameful" by Cabinet minister Nicky Morgan.

Screenshot of Leave.EU's tweet
(@LeaveEUOfficial/Twitter)

It contained an image of what appeared to be Islamic State militants brandishing guns in a desert, with the warning: "Islamist terrorism is a real threat to our way of life. Act now before we see an Orlando-style atrocity here before too long."

The poster was attached to a tweet which claimed: "The free movement of Kalashnikovs in Europe helps terrorists. Vote for greater security on June 23. Vote Leave."

Within minutes of the post's appearance, pro-Remain Education Secretary Morgan responded...

And other Twitter users described it as "disgusting" and "abhorrent", prompting Leave.EU to delete the tweet.