WASHINGTON (AP) — U.S. Park Police are warning protesters at two “Occupy” encampments that they must stop camping at two Washington parks on Monday or risk arrest.

The National Park Service is distributing fliers to protesters Friday at McPherson Square on K Street and at Freedom Plaza on Pennsylvania Avenue. The notice says protesters must comply with regulations that prohibit camping at those sites by noon on Monday.

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The move comes after a House oversight subcommittee hearing Tuesday where Republican lawmakers questioned why camping has been allowed since October. The park service said 24-hour vigils are allowed.

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The park service defines camping as using park land for “living accommodation purposes such as sleeping.” It says camping materials must be removed and temporary structures must be left open to allow for inspection.

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