Dog the Bounty Hunter has said he does not share the many tips he says he's received since launching his own search operation for Brian Laundrie.

The 68-year-old reality star, whose legal name is Duane Chapman, was seen knocking on the door of the Laundrie's residence in North Port, Florida, on September 25 and asking to speak to Brian's parents - but to no avail.

In an interview with Newsmax on Thursday, September 30, Dog spoke in further detail about his hunt for Brian and confirmed that he was not working with law enforcement.

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He said he is not able to call law enforcement and ask for leads, and that "they don't call me and say, 'Hey, Dog, where are your leads?'"

Dog then went on to say: "Now if someone's in a house and they start firing at us, then we call big brother, and they send out the SWAT and the dogs and get the guy."

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Despite him being missing for weeks, Chapman believes Brian is still alive.

"We're getting calls like crazy. I think the success of this bounty hunt is going to be the tip line," Dog told Newsmax. "Over 2,000 calls and about 20% of them are positive leads."

He also explained to the outlet that although the majority of the calls simply express words of encouragement or suggestions, about a fifth of them are useful tips that could potentially be of help in locating Brian, who is a person of interest in his fiancée Gabby Petito's disappearance.

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The case had intensified after Gabby, a 22-year-old blogger, was confirmed dead by the FBI on September 21.

Authorities have been trying to find Brian, whose parents said that they had not seen him since September 14. He had returned from his and his Gabby's road trip on his own about two weeks before he disappeared.

The 23-year-old was named a person of interest in the case on September 15.

Dog the Bounty Hunter is uring those with potentially valuable information to continue calling 1-833-TELL-DOG with tips. Alternatively, the FBI is asking the public to get in touch on 1-800-CALL-FBI if they believe they're able to help pin down Brian's whereabouts.

Dog has reportedly added $10,000 of his own fortune to the reward money for Brian Laundrie's arrest.

Featured image credit: Alamy / WENN Rights Ltd

Dog The Bounty Hunter says he refuses to share Brian Laundrie leads with police