A man killed in a Brussels raid earlier this week was "very likely" already sought under a false identity by authorities in connection with the Paris attacks, prosecutors said on Friday.

Investigations show that "the so-called Samir Bouzir, against whom a look-out warning was issued, most probably is the Algerian national Mohamed Belkaid" killed by police during a gunfight on Tuesday, the federal prosecutor's office said in a statement.

The Bouzir fake identity card was used to wire money from a Brussels Western Union office to the cousin of attacks ringleader Abdelhamid Abaaoud four days after the massacre in the French capital, the statement added.