Donald Trump blamed terrorism for a vanished EgyptAir flight before authorities were even sure the plane had crashed with 66 people on board.

French President Francois Hollande confirmed Thursday that the plane had “crashed” and an accident investigation had been opened after the plane fell 22,000 feet and swerved sharply in Egyptian airspace before disappearing from radar.

Investigators aren’t sure whether the crash was accidental or intentional, but many Twitter users — including likely Republican presidential nominee Donald Trump — speculated that terrorists brought down the passenger jet.

Looks like yet another terrorist attack. Airplane departed from Paris. When will we get tough, smart and vigilant? Great hate and sickness!

— Donald J. Trump (@realDonaldTrump) May 19, 2016

Trump’s fans picked up his message and stated explicitly what the real estate tycoon and reality TV star implied.

@realDonaldTrump don't let them berate you out of the Muslim ban. This is an existential war. We need to be tough!

— Joseph (@joseph12xu) May 19, 2016

@realDonaldTrump If we don't do something soon, this problem will infest America!

— Marc McInnis (@Adoptedyooper) May 19, 2016

@realDonaldTrump I don't trust the media and I don't trust the government.

I only trust you! #MakeAmericaGreatAgain

— MR (@MikeRotondo86) May 19, 2016

Other Twitter users simply belched anti-Muslim statements onto their social media pages.

Experts say bomb most likely smuggled on board #EgyptAir at Paris airport. 'Hug a Muslim' didn't stop more terror. Imagine my shock.

— Paul Joseph Watson (@PrisonPlanet) May 19, 2016

#EgyptAir. Why western people fly with those muslim airline? Paris airport always a mess. Avoid both.

— annette kiel (@annettekiel) May 19, 2016

Since this looks like another act of Muslim terror, let's put it in perspective:#EgyptAir @MayorofLondon @nytimes pic.twitter.com/BkCH7PaUyn

— Sports Hall of Shame (@HallShame) May 19, 2016

🚨 BREAKING: #EgyptAir flight missing after being hijacked by climate change wearing a Muslim costume pic.twitter.com/5XycJ2Q8Ax

— Jared Wyand (@JaredWyand) May 19, 2016