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Sven Mary, Belgian lawyer of Paris attacks suspect Salah Abdeslam, talks to the media outside the Federal Police building in Brussels, on March 19, 2016. AURORE BELOT/AFP/Getty Images

The lawyer for the surviving suspect in the deadly Paris suicide attacks threatened Sunday to sue a French prosecutor who revealed the accused terrorist planned to blow himself up during the onslaught but backed out at the last minute.

Salah Abdeslam, who was captured Friday in a police raid in Brussels, admitted he had planned to die in a suicide attack on the Paris Stade de France on Nov. 13, French prosecutor François Molins told reporters Saturday. Molins read from his client's statement: "He wanted to blow himself up at the Stade de France and, I quote, backed out," Reuters reported.

Sven Mary, who represents Abdeslam, told Belgian state broadcaster RTBF that Molins had violated confidentiality. "I cannot let this pass," he said, according to Reuters. RTBF reported he would begin legal action Monday.

Mary said he would not try to have his client, who is being held in a high-security prison in Brussels, freed from custody.

Mary said his client was cooperating with the investigation but would fight extradition to France. He is a Belgian native whose brother, Brahim, was among the suicide bombers, who were linked to the Islamic State group.

The attacks in Paris killed 130 people at the stadium, bars and a concert hall.