OK…this is upsetting.

A vet has pleaded with pet owners to stay in the room when their furry friends are euthanised.

The unnamed vet has revealed how “scared” animals look around for their owners in their dying moments.

“They search for you when you leave them behind.”

The appeal from the “tired broken-hearted” vet has gone viral since it was shared by Hillcrest Veterinary Hospital in South Africa.

The animal doctor said the worst thing you can do when your pet is being put down is to leave the room.

“Don’t be a coward because you think it is just too hard for YOU.”

“They search every face in the room for their loved person. They don’t understand why you left them when they are sick, scared, old or dying from cancer.”

Image Source: Hillcrest Veterinary Hospital

“People like me are left to try our best every time to comfort them, make them less scared and try to explain why you just couldn’t stay.”

“I beg you DO NOT LEAVE THEM.”