Reno Police are investigating vandalism to several historical gravestones at the Hillside Cemetery on Nevada Street.

Authorities tell us that at least four headstones were damaged late Saturday night. The headstones are from the 1800's and are considered to be of historical value.

"Some of that marble is no longer available, it's very expensive to replace so due to the actual cost of the damage, it's being classified as a felony crime at this point," said Officer Tim Broadway with the Reno Police Department.

The total damage is being assessed but at this time officials say the estimated damage is about $15,000 to $20,000.

If you know anything about this case please call Reno Police at 334-2115 or Secret Witness at 322-4900, or text your tip to 847411. Your information will remain anonymous. A $500 reward is being offered.