There was a clear failure in the psychiatric care of the radicalised individual suffering from mental troubles who stabbed a German tourist to death in central Paris at the weekend, France’s interior minister said on Monday.

The attack close to the Eiffel Tower has increased concerns in France over the risk of extremist attacks, particularly with the French capital now barely half a year away from hosting the 2024 summer Olympic Games.

The attacker was a Frenchman in his mid-20s born to a non-reon ligious Iranian family but who had already done prison time for planning an attack and was known to the authorities as a radical with mental troubles.

“There was clearly a failure, not from the point of view of his monitoring by the intelligence services, but a psychiatric failure,” Interior Minister Gerald Darmanin told BFM TV, adding the attacker had an “acute mental illness”.

“Doctors said on several occasions that he was doing better, was more normal and could be free.”

‘Exploiting weaknesses’

Armand Rajabpour-Miyandoab, a French national of Iranian origin born in 1997, killed a 23-year-old German-Filipino man with two blows from a hammer and four stab wounds from a knife on Saturday evening close to the Eiffel Tower.

The investigation is being handled by French anti-terror prosecutors who have launched a probe into a suspected “terrorist” plot.

France’s top anti-terror prosecutor Jean-Francois Ricard said on Sunday the man’s mother had reported concerns about him as recently as October, but there was insufficient proof at the time to take legal action.

He was already arrested in 2016 for planning an attack, eventually serving four years in prison, and was under close watch following his release.

Darmanin said the attacker’s mother had warned police that her son was no longer taking his medication and intelligence services had offered that he should be hospitalised. But she did not want that and then reported he was doing better.

He said regional authorities currently did not have the power to issue an administrative order for such an individual to undergo psychiatric treatment and “this has to change”.

Rajabpour-Miyandoab was radicalised through contacts on the Internet rather than meeting people at a mosque, he emphasised, adding the attacker was also in touch with perpetrators of similar past attacks.

These contacts included the future killer of teacher Samuel Paty, beheaded outside his school in 2020, a radical from Russia’s northern Caucasus region.

“Terrorism is changing and exploiting the weaknesses of our system,” Darmanin said.

Four people — the attacker and three other people from his family and close circle were still in custody on Monday morning, a source close to anti-terrorism prosecutors told AFP.

‘No plan B’

The attack late on Saturday came as France is at its highest alert level against the background of the fighting between Israel and Hamas, and following the killing of a teacher in a school by a radical in October.

Shouting “Allahu Akbar” (God is greatest), Rajabpour-Miyandoab fled over the Bir Hakeim bridge across the river Seine after a taxi driver intervened.

Meeting a police patrol on the other side, he claimed to be wearing an explosive belt before running again, striking two passers-by — a 66-year-old British citizen and a 60-year-old French person — with the hammer.

He was finally stopped with two shots from a taser and taken into custody.

Ricard said he had posted a video on social media where he swore allegiance to the militant Islamic State group and expressed his support for jihadists.

The attack has amplified security concerns over the Olympics, due to begin with an unprecedented opening ceremony on the river Seine which experts see as a potential target for an attack.

But Sports Minister Amelie Oudea-Castera said there was no plan to scrap the idea while indicating that the river ceremony could be adapted.

“There is no plan B, we have a plan A within which we have several alternatives,” she told France Inter radio.