RED BLUFF, Calif. (AP) — A Northern California man has been arrested after authorities say he stashed an arsenal and thousands of rounds of ammunition in a survival bunker.

The Red Bluff Daily Record says Gary Stiles was arrested Monday for weapons violations. It’s unclear whether he has an attorney.

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The Tehama County district attorney’s office says the 62-year-old Red Bluff man had to surrender his guns because of a restraining order against him for allegedly harassing numerous people but prosecutors received tips that he still had them — and was still threatening people.

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Investigators went to Stiles’ remote home and found a steel bunker buried 10 feet underground.

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Investigators say on Stiles’ property, they found 60 handguns, rifles and shotguns, including seven illegal semi-automatic rifles; 50 high-capacity magazines and some 50,000 rounds of ammo.