The man arrested, a Belgian national born in 1993 and identified only as Ayoub B., was detained Wednesday following a search in the Molenbeek neighborhood of Brussels, where some of the Paris attackers lived.
In a statement Thursday, the Belgian Federal Prosecutor's Office said "about 10 cellphones" were seized during the search, and are being examined.
The suspect, the 10th arrested in Belgium in connection with the Nov. 13 attacks in the French capital that killed 130, is to appear before another judge within five days. They will decide whether he should continue to be held in preventive detention.
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