The suspected ringleader of the Paris attacks, Salah Abdeslam, decided not to blow himself up during the wave of killings in the French capital last year, his brother said on Friday.

Mohamed Abdeslam said his brother "voluntarily chose not to blow himself up" along with the other Islamic State jihadists who killed 130 people in gun and suicide bomb attacks in November.

"If I wanted, there would have been more victims," Salah Abdeslam told his brother from prison in northern Belgium, according to Belgian media chain BFMTV.

"Luckily, I did not follow through."

Salah Abdeslam, the sole surviving suspect in the November attacks in Paris, was arrested in Brussels on March 18 after four months on the run as Europe's most wanted man.

He is believed to have acted as a logistics coordinator and told investigators he was meant to carry out a suicide bombing at the Stade de France stadium, but backed out.

READ: Paris suspect Abdeslam wants to be extradited to France: lawyer

READ: How Belgian prisons became a breeding ground for Islamic extremism

Four days after he was arrested, the Belgian capital was struck by IS bombings at the airport and a metro station carried out by jihadists with links to the Paris attacks cell.

The 26-year-old, who is about to be extradited to France, apparently told his brother he wants to cooperate with investigators, but denied any role in the Brussels bombings.