Boo, the beloved internet-famous Pomeranian, died in his sleep Friday night at the age of 12 (in human years). He was best known as an adorable social media sensation with 16 million Facebook followers, brought smiles to many faces, and was called the world's cutest dog. Boo's humans hope he has reunited with his older brother Buddy, who died in 2017.
"With deepest sadness I wanted to share that Boo passed away in his sleep early this morning and has left us to join his best friend, Buddy," Boo's humans wrote in a heartfelt Facebook post. "Our family is heartbroken, but we find comfort knowing that he is no longer in any pain or discomfort. We know that Buddy was the first to greet him on the other side of that rainbow bridge, and this is likely the most excited either of them have been in a long time."
Boo started having heart issues after Buddy died, his humans revealed. "We think his heart literally broke when Buddy left us."
Fans of Boo shared their sadness over the news on Twitter. Below, see their reactions.