The bust of the late South Korean president Park Chung Hee as seen in a park in Seoul on Sunday.
The bust was vandalised in an apparent anonymous act of discontent with his daughter and incumbent President Park Geun Hye, who is suspected of having been involved in an unprecedented corruption scandal. The graffiti reads "Order of Removal".
Mr Park's birthplace was damaged in an arson attack on Thursday. Police have arrested a male suspect, 48, who said he was angry at Ms Park's refusal to step down.
Mr Park is beloved among older conservatives who credit him with leading the country out of poverty while fending off communist threats from the North.
He came to power in a military coup in 1961 and ruled with an iron fist until he was assassinated by his intelligence chief in 1979.