Zoe Saldana is still trying to come to terms with Anton Yelchin's death, after the 27-year-old actor died in a freak accident on Sunday -- the same day she celebrated her 38th birthday.
The actress took to Instagram on Thursday to pay tribute to her friend and Star Trek co-star, revealing the loss has left her "broken hearted."
WATCH: 'Star Trek' Star Anton Yelchin Dead at 27
"Your sudden and unexpected departure has left us all broken hearted," Saldana posted on Instagram. "I woke up today feeling absolute gratitude that I had you as a friend and colleague."
"Your life has been cut short, but I will always tell everyone about you," she said. "You were kind, present, old souled, curious, brilliant, funny, humble, honest, and undeniably talent."
"Good bye Anton, it was an honor to have crossed paths with you," Saldana concluded her post, along with a picture of Yelchin.
WATCH: Anton Yelchin Died About One Minute After His Accident, Coroner Says
Yelchin's whole Star Trek family is still reeling from the tragic loss. In wake of the actor's death, Paramount Pictures cancelled an upcoming Star Trek Beyond event at the 63rd Cannes Lions festival, where much of the film's cast was set to appear.
"All of us are deeply saddened by the loss of our friend Anton Yelchin," Paramount said in a statement to ET. "Out of respect, we are withdrawing our participation in the previously announced Star Trek Beyond event at Cannes Lions this week."
WATCH: Anton Yelchin Talked Playing the Viper Room, Connecting Through Music in His Final ET Interview
Watch the video below to see how more of Yelchin's co-stars and friends have reacted to his tragic death.