For the fourth time in a month, vandals have desecrated the Jewish cemetery at Mar del Plata, a seaside resort about 250 miles south of Buenos Aires.
In a rampage last week, they smashed 20 tombstones, stole ornaments from 10 more and painted swastikas on walls.
Buenos Aires police have been ordered to maintain permanent watch at all Jewish cemeteries in the province.
Jewish leaders warned that the recent attacks had wide implications.
The attacks “not only affect Jews but also destroy the social and cultural framework of the whole community,” the Delegation of Argentine Jewish Associations said in a statement.
In April, a Buenos Aires area cemetery was the target of a shooting incident found to have been perpetrated by “Nazi sympathizer groups.”
No one was hurt in that episode, which involved the firing of two shots at the main entrance of the cemetery in suburban Berazategui. The same cemetery was vandalized last year on the anniversary of Adolf Hitler’s birth, April 15.