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A lost seal pup made its way into a New Zealand home on Sunday night.

The seal had wriggled its way through Annette Swoffer's cat-door and cuddled up on the couch of her Tauranga home, on New Zealand's north island.

The seal is believed to have wandered up from the waterfront at nearby Welcome Bay.

At first, Swoffer got a shock and thought she might have been hallucinating when she noticed the seal curled up on her couch.

"I was in my office and I heard an awful racket down below ... I thought the cats have brought a rabbit or something in so I went down and had a look -- and there's a seal in my kitchen," she told the Bay of Plenty Times.

"I thought 'I'm hallucinating, this is just wrong.'"

Ms Swoffer called the Society for the Prevention of Cruelty to Animals (SPCA), who contacted the Department of Conservation (DoC), which was already searching for a seal reported hopping along a local road.

"They were giggling away and I'm saying 'I'm not drunk, I'm not lying', there's a seal in my house," Swoffer said.

Swoffer said the pup was "really friendly" and not at all aggressive - which is unusual for seals.

The seal was placed in a net and box by DoC officials. But as it was being driven away, the seal escaped and moved up to the front of the vehicle, where it accidentally switched on the radio, and ended up on the front seat.