'World's cutest dog' Boo died of a broken heart, his owners say

Pet lovers everywhere woke up Saturday morning to some heartbreaking news: Boo, the social media-famous Pomeranian often dubbed the “ world’s cutest dog ,” has passed away.

The 12-year-old pooch racked up millions of fans over the years on both Instagram and Facebook. He often posed and played with his canine best friend, Buddy, and followers loved seeing both tiny dogs get into mischief together.

Boo's owners announced the pup's death late Friday night.

“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,” a message on Boo’s Facebook account reported to its 16 million followers. “Our family is heartbroken, but we find comfort knowing he is no longer in any pain or discomfort.”

The post went on to say that Boo showed signs of heart issues as soon as his best pal died.

“We think his heart literally broke when Buddy left us,” the post continues.

https://www.instagram.com/p/BYvv3PBgWIA

"Over the years Boo met some super cool people, a lot of crazy talented people, but most of all so many kind people...friends who gave him endless love," the message also said.

Now, many of those kind fans are grappling with losing their fluffy friend.

“I would like to thank Boo for being my center of focus for the last 7 years fighting cancer,” one person commented on Facebook . “My sister went to the gift shop in the hospital and bought me a tiny Boo stuffed animal.”

Limit treats to training rewards. This is an excellent way to make sure your dog views treats as special rather than expected. It’s also helpful in keeping your pet from becoming overweight or obese. Feed a species-appropriate diet, and partner with a holistic or integrative vet to maintain your pet’s well-being.

“Boo, we love you with all our hearts and will miss you until the day we meet again,” the post concludes. “Have fun running around with Buddy and creating adorable mischief wherever you guys go.”

Rest in peace, Boo. You will be missed.

How an infant and dog with wounded hearts are healing together