The historic Sumner Cemetery at 12324 Valley Avenue East was vandalized the evening of Jan. 30 and the early morning of Jan. 31.
Sumner Police Department has determined more than 80 headstones were vandalized.
Some antique granite stones were tipped over, while others were carried to other areas of the cemetery.
Sumner police have begun an investigation while City Shops and Parks crews help cemetery staff restore the headstones.
Those with any information are encouraged to call police.
The Sumner detectives’ tip line is 253-299-5678.
The cemetery experienced similar vandalism in 2005.
Two suspects were caught and were sentenced to community service.