NEW: Dog starts a house fire in Tulsa, Oklahoma after chewing through a portable lithium-ion battery.

Two dogs and a cat were filmed hanging out before one of the dogs started the fire with the battery pack.

The animals were filmed in the living room on an indoor monitoring camera, observing the fire before it got out of hand.

"Lithium-ion batteries are known for storing a significant amount of energy in a compact space," the fire department said.

"However, when this energy is released uncontrollably, it can generate heat, produce flammable and toxic gases, and even lead to explosions."

The pets were able to escape the home through a dog door.

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