PEMBROKE, NH (CBS) – A fire inside a Pembroke, New Hampshire kennel killed 15 dogs and two cats early Thursday morning.

The fire broke out inside the boarding kennel at Hemlock Hill Farm.

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The fire department says, by the time they arrived, the building was engulfed by flames, and there was no way to save the animals.

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The kennel’s owner said all of her records were destroyed in the fire. She has no way of getting in touch with the owners.

As of Thursday, a number of owners had no idea their pets had died.  Many were believed to still be on vacation.

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Investigators think the fire was accidental. They suspect a ventilation fan may have sparked the fire.