Swastikas and obscenities were found drawn around the entrance to the Polish Embassy in Israel on Sunday, one day after Poland’s prime minister made comments suggesting there were “Jewish perpetrators” of atrocities during World War II.

The graffiti, scrawled in black marker on an outdoor bulletin board and on gates at the embassy, in Tel Aviv, included the words “Polish” and “murderer,” along with several obscenities.

The Israeli police said they had opened an investigation into the vandalism and were “searching for the suspects involved.”

The graffiti appeared to refer to sharp disagreements between Polish and Israeli officials over a piece of legislation signed into law in Warsaw this month that made it illegal to suggest that Poland bore responsibility for atrocities committed by Nazi Germany during World War II.