A video of the alleged shooter has emerged in social media shortly after the initial reports. The footage shows the perpetrator shouting and pointing at someone with the barrel of the shotgun.
İstanbul Esenyurt'ta bir adam çatıya çıkıp pompalı tüfekle etrafa rastgele ateş açtı👇 pic.twitter.com/u2gKfzXP5F— Az Önce Oldu (@azonceoldu) August 15, 2017
The district has been cordoned off by special ops units, Dogan News Agency reports. Emergency services have arrived at the scene.
No casualties have been reported so far.