SOHR was informed that no less than 40 fighters from jabhat al-Nusra, including an Amir who retired from fighting in al-Nusra side, have joined the IS in the past days and moved into al-Bab city which is one of the main the bastions of the IS in Syria northeast of Aleppo, SOHR was informed that once the fighters arrived to al-Bab city, the IS presented a woman “Sabbieh” to their commander .