The lawyer defending the prime surviving suspect for the Nov. 13 Paris attacks said on Sunday he would sue a French prosecutor for divulging his client's admission that he had planned to blow himself up with fellow Islamic State militants.

Speaking two days after Salah Abdeslam was captured during a police raid in Brussels, his lawyer, Sven Mary, accused the lead French investigator of violating judicial confidentiality.

"I cannot let this pass," Mary told Belgian state broadcaster RTBF. Mary's office was not available for comment, but RTBF said he would start legal proceedings on Monday.