This is reported on the SpaceX company Twitter page.

Liftoff! pic.twitter.com/bwIfABbhIA

- SpaceX (@SpaceX) April 11, 2019

In early March, SpaceX launched the Falcon 9 launch vehicle from the Florida spaceport with the Dragon 2 spacecraft, which is making its first unmanned test flight.

Later, United States President Donald Trump on his Twitter noted NASA's success and congratulated SpaceX on the successful launch of the Dragon 2 spacecraft to the International Space Station (ISS).