Ninety graves have been desecrated at a Muslim cemetery in the Argentine capital, Buenos Aires, authorities say.
Police say they have no clues as to who might have carried out the attack, which has been described by Muslim community leaders as a barbaric act.
At the time, police were present in the cemetery, guarding the tomb of the late son of the former president, Carlos Menem.
But they said they did not hear the attack take place.