Ninth person arrested in Belgium over Paris attacks

The man, named as Abdoullah C, a 30-year-old Belgian national, was arrested on Tuesday. Prosecutors did not announce his arrest then in order to avoid alerting potential accomplices, a spokesman said.

"This person is suspected to have had contact several times with cousin, in the period between the terrorist attacks and the events in Saint-Denis," the prosecutor said in a statement.

An investigating magistrate ordered the man to be detained on suspicion of terrorist murders and participation in a terrorist organisation, the prosecutor's statement added.

Boulahcen and Abaaoud were both killed in a police raid in Saint-Denis, France, days after the Paris attacks.

On Monday police held five people in several searches in Brussels, but all were released later that day.