Syrian Opposition representative, Naser al-Hariri, held a press conference in the Turkish city of Gaziantep, stating that more than 6,000 airstrikes were carried out by the Syrian and Russian air forces on rebel targets since the start of the escalation.[52] He rejected UN mediation, stating that he thought "the United Nations Security Council is no longer sufficient to protect civilians and is no longer responsible for maintaining international and regional security".[53] He called on Turkey to intervene on behalf of the rebel groups, since Turkey has established military observation posts in the DMZ.[54] An NFL spokesman stated that the NLF categorically rejects any joint Russian-Turkish patrols inside the DMZ as part of any ceasefire deal, adding that they would only accept Turkish troops.[55] The joint Russian-Turkish patrols were a controversial part of the Idlib demilitarization agreement.