In response, a state of emergency was declared, and temporary border checks were introduced. On 15 November, France launched the biggest airstrike of Opération Chammal, its contribution to the anti-ISIL bombing campaign, striking ISIL targets in Al-Raqqah. On 18 November, the suspected lead operative of the attacks, Abdelhamid Abaaoud, was killed in a police raid in Saint-Denis, along with at least two other people