The fence outside the Jerusalem offices of Peace Now was spray-painted with threatening graffiti.
The words “No leftists, no terror attacks” were painted Thursday on the fence.
The Jerusalem police have opened an investigation into the incident, according to reports.
In November, vandals targeted the home of Hagit Ofran, the director of Peace Now’s Settlement Watch project, with graffiti including swastikas and the words “Rabin is waiting for you,” referring to the assassination of former Prime Minister Yitzhak Rabin that took place in November 1995.
The day before the November attack, the Peace Now offices were evacuated following a bomb threat.