Dwayne "The Rock" Johnson missing one of his new puppies on Monday after it ate a poisonous mushroom and died.

The actor and ex- wrestler adopted two French bulldogs that his family named Hobbs and Brutus at the end of the summer. Since then, the pups have become Internet celebs, appearing in many gorgeous posts on social media.

"At approximately 11:15pm last night myself and @laurenhashianofficial had to make the painful decision to end Brutus' suffering by taking him off of life support and sending his soul to pup heaven. I held his lil' paw as he was finally at peace."  

So when Brutus became unwell after eating the mushroom, and Johnson had to end the little guy's suffering, he took to Instagram and Facebook to share the news of his loss.

Dwayne 'The Rock' Johnson has warned pet owners about the dangers of poisonous mushrooms following the death of his beloved puppy.

The actor posted a touching picture to Instagram, explaining how he and his girlfriend Lauren Hashian made the difficult decision to have their French Bulldog Brutus put down after it ingested toxic fungi.

 "I encourage all of you out there to be mindful of mushrooms in your yards, parks or anywhere outside your dogs play. What looks innocent, can be deadly to your lil' family members," he wrote.

Over Labor Day weekend, Johnson had another close call with Brutus when the puppy jumped into the actor's pool and started to drown. The "Fast and Furious" star immediately jumped into the pool to save him, and noted: "A) Not all puppies have the instinct to doggie paddle. B) Some puppies (like BRUTUS) will be so in shock by experiencing water they will sink extremely fast so react quick."