Vandals have struck Plymouth Rock. Sometime before 8 a.m. Tuesday, someone jumped into the enclosure around the waterfront landmark and spray painted “LIES” on the rock where “1620” is carved.

Vandals have struck Plymouth Rock.

Sometime before 8 a.m. Tuesday, someone jumped into the enclosure around the waterfront landmark and spray painted “LIES” on the rock where “1620” is carved.

The granite walls of the enclosure were also vandalized.

Someone drew what appeared to be an obscene figure on one wall and the phrases “Movement 32” and “For A Drug Filled World” on the others. The “A” was made to look like an anarchist symbol.

A worker for the state Department of Conservation and Recreation climbed into the enclosure late Tuesday morning and used soap, a wire brush and a power washer to clean off the graffiti.