A popular YouTuber with more than 350,000 followers is now reportedly under police investigation after accidentally uploading a video of herself slapping, spitting and yelling at her dog.

Brooke Houts, who often uploads videos featuring her doberman, Sphinx , was quick to delete the accidental upload that showed her slapping her dog, spitting on him and yelling at him.

However, someone else managed to record and re-upload the footage.

The YouTuber's popularity can be attributed, in great part, to her dog, since most of her videos are about him and her life with him.

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The footage has caused outrage among Houts' fans.

One Twitter user says Houts "uses this dog for clicks and straight up beats it behind the scenes".

The YouTuber posted a long apology on Twitter, saying she is "NOT a dog abuser or animal abuser in any way, shape or form".

According to NBC, police in Los Angeles has launched an investigation into the alleged abuse.