Donald Trump made a new post regarding the aviation tragedy at Ronald Reagan Airport in Washington, which claimed the lives of 67 people.

“The Blackhawk helicopter was flying much higher than the allowed limit. It was well above the 200-foot limit. This isn’t too hard to understand, right?” wrote the U.S. president.

Trump is referring to the regulation that sets the maximum allowed flight altitude in the area at 200 feet. According to flight recording data, the military helicopter had made a rapid ascent to 300 feet before the crash.

Here’s the U.S. president’s post:

According to the FAA, the American Airlines Bombardier aircraft collided with the Sikorsky H-60 helicopter while it was approaching to land at Ronald Reagan Airport. The collision could have been avoided, estimated Sean Duffy, the new Transportation Secretary of the Trump administration.

The helicopter crew was “relatively experienced” and was conducting a “routine night training flight,” said the new Secretary of Defense, Pete Hegseth. The three soldiers were equipped with night vision goggles.