Zac Efron's Dog Dies: See the Actor's Sweet Tribute!

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Zac Efron
is mourning the loss of his beloved dog. On Thursday, the Neighbors 2 star took to Twitter to honor his fallen pet.

WATCH: John Stamos Shares Heartbreaking Tribute After Beloved Dog Dies

“Through thick and thin you’ve always been my best friend. Until we meet again, RIP Puppy Efron,” the actor captioned a sweet photo of his dog licking his face.

Efron, 28, has been a long-time animal lover. Back in November 2014, he adopted a tiny black puppy with his now ex-girlfriend, Sami Miro.

He later tweeted a sweet photo of himself with the little guy in May 2015, writing, “The morning after we rescued him #ChappelleShow.”

WATCH: Simone Biles' 'Brazilian Boyfriend' Has a Message for Zac Efron: 'I Saw Her First'

There have been several sad celebs who have lost pets recently. Just last week, John Stamos revealed that his dog, Linka, had died.

"She was always by my side, especially in the dark times," Stamos captioned the photo, showing Linka watching over him from outside a pool. "Never judging. By my side. Only loyal."