"And by the way, ask Hillary who blew up the plane last night," Donald Trump said. | Getty Trump hits Clinton after EgyptAir flight's disappearance

Donald Trump on Thursday used the disappearance of EgyptAir Flight 804 to strike back at Hillary Clinton’s charge that he is unqualified to be president.

“The fact that Hillary thinks the temporary Muslim ban, which she calls the 'Muslim ban', promotes terrorism, proves Bernie Sanders was correct when he said she is not qualified to be President,” Trump wrote in a statement.


“Look at the carnage all over the world including the World Trade Center, San Bernardino, Paris, the USS Cole, Brussels and an unlimited number of other places. She and our totally ignorant President won't even use the term Radical Islamic Terrorism. And by the way, ask Hillary who blew up the plane last night - another terrible, but preventable tragedy. She has bad judgment and is unfit to serve as President at this delicate and difficult time in our country's history.”

Trump kept up the attacks against his likely general election opponent on Friday morning, tweeting, "Crooked Hillary has zero imagination and even less stamina. ISIS, China, Russia and all would love for her to be president. 4 more years!"

"Look where the world is today, a total mess, and ISIS is still running around wild. I can fix it fast, Hillary has no chance!" he followed up, adding, "Crooked Hillary Clinton looks presidential? I don't think so! Four more years of Obama and our country will never come back. ISIS LAUGHS!"

Minutes before phoning in to MSNBC's "Morning Joe," Trump turned his attention toward the continuing Democratic race, writing, "Crooked Hillary can't even close the deal with Bernie - and the Dems have it rigged in favor of Hillary. Four more years of this? No way!"

During his subsequent telephone interview with "Fox & Friends," Trump said Clinton's insistence that his temporary ban on Muslims promoted terrorism "one of the dumber statements I ever heard."

"I just think it's absolutely dumb," Trump said when asked why. "In fact, if anything, it's just the opposite because they're going to have to learn we can't take this anymore. They have to turn in the people that are bombing the planes and they know who the people are. And we're not going to find the people by just continuing to be so nice and so soft and I have many Muslim friends and they agree. They have a tremendous problem with the radical Islamic terrorism, tremendous problem. And what she said is so dumb. They are going to have to start turning in— You take a look at San Bernardino, everybody knew that they were going to do this attack. There were bombs all over their apartment. Everybody saw the bombs. They knew this was happening. And nobody turned them in. And you take a look at Paris. Everybody knew that what was happening, and by the way, the last person that they were looking all over for, you know, eight months they found that person living practically where he lived before. Nobody turned him in."

Shortly after the flight from Paris to Cairo disappeared early on Thursday morning, Trump tweeted that it “Looks like yet another terrorist attack,” despite calls from an Egyptian civil aviation official to stop speculation without confirmation. "When will we get tough, smart and vigilant? Great hate and sickness," the tweet read.

Later in the day, Clinton questioned the presumptive Republican nominee’s credentials to occupy the Oval Office.

“I know how hard this job is, and I know that we need steadiness as well as strength and smarts in it, and I have concluded he is not qualified to be president of the United States,” the former secretary of state told CNN.

"The kinds of positions he is stating and the consequences of those positions and even the consequences of his statements are not just offensive to people, they are potentially dangerous.”