Damage is pegged at $7000 after vandals targeted a cemetery near Morpeth.
Chatham-Kent Police say in the last week, 30 headstones have been knocked over.
Anyone who might be able to track down the culprits is urged to get in touch with Constable Mark Smith at marksm@chatham-kent.ca or 519-436-6600 extension #87162.
Anonymous callers may call Crime Stoppers at 1-800-222-TIPS (8477).