Celebrities Remember 'Star Trek' Star Anton Yelchin

— -- "Star Trek" actor Anton Yelchin died in an car crash Sunday. He was 27.

Yelchin was best known for playing Chekov in the new "Star Trek" films. His publicist said in a statement he "was killed in a fatal traffic collision early this morning."

"His family requests you respect their privacy at this time," the statement added.

As news of Yelchin's untimely death became public, many celebrities took to social media to honor the young actor.