John Travolta posted a video on his Instagram along with a message:

https://www.facebook.com/johntravolta/videos/747527472367153/
“I’m here, in the backyard of my house,” he says in the video. “We’re packing up the plane with food and water to take to Freeport to help out on the island. I’ve brought a bunch of Volunteer Ministers from my Church. And we’ll see you when I arrive.”
The men and women in the bright yellow shirts in the background, loading and unloading his jet, are Scientology Volunteer Ministers, who have been providing relief on Grand Bahama Island since Hurricane Dorian struck.
To learn more about their work, follow the Scientology Newsroom.