"On April 20, it was noticed that two Latin letters V ... were painted on the Paneriai Memorial monument in Vilnius, Agrastu Street ... Circumstances are being determined," the police department said.
Two previous cases of vandalism took place on March 31 and April 3, when the letters V and Z were spray-painted on the Paneriai memorial.
In 1941, Paneriai, then a village and not incorporated into the Lithuanian capital, was where Nazis executed tens of thousands of people. This is the largest Nazi mass murder site in Lithuania. According to some estimates, Nazis and their Lithuanian collaborators killed up to 100,000 people here, including 70,000 Jews. A memorial was erected at the site of the tragedy in 1948, with a museum opened in 1960.
Since the start of the Russian military operation on 24 February, Soviet World War II memorials have been vandalized across Lithuania. Earlier this week, the Lithuanian parliament banned public displays of the letters V and Z, and the black and orange ribbon of Saint George, another Russian military symbol.