The Paris prosecutor's office says unidentified DNA has been found on two explosives belts linked to assailants in the November attacks around Paris.

Authorities have not said how many people may have been involved in the attacks by Islamic extremists.

A street cleaner found one explosives belt in the Paris suburb of Montrouge, near where fugitive attacker Salah Abdeslam's mobile phone had been found, raising speculation that he aborted a suicide attack mission. He remains at large.

The prosecutor's office said Friday that DNA traces found on the belt were not Abdeslam's but those of an unidentified person. That person's DNA was also found on the suicide belt of Abdeslam's brother Brahim, who blew himself up in the Nov. 13 attacks that killed 130 people, and an apartment in Belgium.