Investigators now say two locations in Colorado have been targeted by someone vandalizing national parks.
Police in Arvada are investigating after more than 170 reports of vandalism were taken overnight.
An investigation is underway after evidence of vandalism at several national parks, including Rocky Mountain National Park, has been posted online.
The National Park Service says vandalism has been found within five western national parks and officials are investigating vandalism reports at five other parks.
A school in Lakewood had to be closed after vandals broke in overnight.
Police in Erie are hunting for vandals who targeted a house under construction.
A man found guilty of committing vandalism at Englewood High School was sentenced on Friday.
Police who patrol Denver’s Bear Valley Neighborhood are searching for the vandals responsible for a major outbreak of graffiti over the holiday weekend.
Several homes in a Thornton neighborhood were sprayed with graffiti early Saturday morning, and one resident said the vandals ruined a piece of history.
More than 100 people in Thornton are dealing with graffiti on their property.