Vandals have defaced a monument to a Latvian dock labourer who saved dozens of Jews during Nazi Germany's World War II occupation of the Baltic country, police said Monday. Riga police spokesman Toms Sadovskis told the Baltic News Service that the monument to Zanis Lipke had been found spattered with paint in the early hours of Monday. Sadovskis said investigators had not found any immediate evidence to link the incident to an attack last week on Riga's Jewish cemetery, where swastikas were painted on 89 tombstones. Police are still probing the cemetery desecration, which was condemned by Latvia's President Valdis Zatlers and government leaders. Lipke rescued around 50 Jews during the war. After the Nazis occupied Latvia in July 1941, he found work with the German air force. Taking advantage of that cover, he smuggled Jews to various hideouts where many remained until Soviet troops arrived in October 1944. In 1966, he had been granted the title of the Righteous Among Nations -- conferred by Israel's Yad Vashem Holocaust memorial authority on non-Jews who saved Jews from the Nazis. He died in 1987. Around 85,000 Jews lived in pre-war Latvia. While some were able to flee before German troops arrived, 70,000 were murdered in the country by the Nazis and local collaborators or perished after being deported to camps elsewhere in occupied Europe. Between 200 and 450 Jews survived the war in Latvia. Today, Latvia's Jewish community numbers some 10,000 in a country of 2.2 million. 