Many companies use CCTV cameras to keep an eye on their buildings and to help catch any burglars who try to get in. Well, one company is very glad they had cameras because their footage helped them rescue a sick animal who got locked in their building by mistake.

A wild otter was spotted on the security footage of a pet store called Pets At Home. The sick female otter managed to sneak in while a truck was making a delivery, but they have no idea where she came from. The nearest open water was pretty far away, and it made no sense for her to come into a noisy building. Maybe she was shopping for some supplies?

The otter was discovered by employee Nadine Eason. "I heard a rustling sound when I was in the office later in the evening, and wondered what it was. I caught a glimpse of a tail and thought it was a cat, but then I opened the door and saw the otter."

They knew they had to catch it but it wasn't the easiest thing to do...

"Luckily, we have a Vets4Pets practice inside our store and I immediately called my colleague Alexandra to help, as she's a veterinary nurse." They were able to keep an eye on the animal until help could arrive. "We didn't want to stress the animal, so kept well clear until the RSPCA arrived. Luckily, an inspector arrived quite quickly and we all worked together to rescue the otter."

Together the team was able to get her, but it wasn't easy. "It took an hour to catch her, as she had lots of places to hide and I tried to make sure she didn't get too stressed," RSPCA inspector Georgia McCormick said. "She probably came exploring for some food and warmth."

The adventurous otter was checked out by a vet, and they found that her breathing sounded wheezy. The vet prescribed some antibiotics to help and now that she is eating well and sounding better she will be released back into the wild.

I guess she knew she was sick and needed help, so maybe she figured she may as well check the pet store! Such a smart lady!