On May 14, a prisoner transport truck from the Rouen court in northwestern France preparing to transport prisoners back to prison was ambushed near the toll booth on the A154 high road, and the two sides exchanged fire, resulting in the death of two prison guards in the line of duty, three other officers were seriously injured, and one prisoner on board successfully escaped.

At present, the authorities have deployed hundreds of police and gendarmerie to search for fugitives and attackers.