An Argentine prosecutor has asked a federal judge to investigate President Cristina Fernandez de Kirchner over allegations she helped cover up Iranian links to a deadly 1994 bombing.
Prosecutor Gerardo Pollicita inherited the case from Alberto Nisman, who was found dead in mysterious circumstances.
The president denies the allegations, with the government calling the probe an “anti-democratic attack”.
The attack on a Jewish centre killed 85 people. Iran denies being involved.
The latest prosecutor’s move means the judge will have to decide whether to authorise new investigations to prove the president’s alleged involvement.
If the prosecutor and the judge agree that there are enough elements to prove Ms Fernandez committed a crime, she could face prosecution and be charged.
Before his death, Mr Nisman had published a report on the attack on the Amia Jewish centre.
Although this was an expected move, it could not have come at a worse time for the Argentine president.
Cristina Fernandez de Kirchner was already facing criticism for the way she has been managing the Nisman case, which has become the worst crisis of her political career so far.
Now she will also face pressure from the judiciary, which is demanding an unprecedented investigation into a sitting president – one that could end up with an impeachment-like process if she is found guilty.
Meanwhile, prosecutors are calling for a massive protest on the streets of Buenos Aires next week in what is expected to become the largest anti-government march in recent years.
Opposition leaders, unions and even the Catholic Church are joining calls for a fair and independent investigation into a death that has shocked this nation.