France's President Emmanuel Macron, left, welcomes Romania's Interim President Ilie Boloja, before a meeting on European security, Wednesday, Feb. 19, 2025, at the Elysee Palace in Paris. (AP Photo/)

The Paris chief prosecutor said those arrested are alleged to have helped in the escape of Mohamed Amra in a deadly prison van ambush nine months ago.

Amra vanished after an attack with military-style assault weapons on a prison van carrying him in northern France last May, police say.