Several television channels broadcast the image of this individual aiming at Ms. Kirchner’s head as she got out of the car that took her to her home in the Recoleta neighborhood of Buenos Aires.

“Now the situation must be analyzed by our forensic personnel to analyze the fingerprints and the capacity and the disposition that this person had,” the minister said.

The man, who did not shoot, approached Ms. Kirchner in the middle of the crowd waiting to greet her and ask her for an autograph for an autobiographical book.

Hundreds of activists have gathered since last week outside the home of Cristina Kirchner, 69, accused of fraud and corruption relating to the awarding of public contracts in her stronghold of Santa Cruz (south), during her two presidential terms (2007 -15).

In this case, the prosecution requested a 12-year prison sentence and life ineligibility against Ms. Kirchner (Peronist, left).

The attack on the vice-president was condemned by the opposition coalition Together for Change, which called for an investigation into the events, as well as by the government.