>The SMM conducted a crater analysis and its initial assessment showed that the impacts were caused by Grad and Uragan rockets. According to the impact analysis, the Grad rockets originated from a north-easterly direction, in the area of Oktyabr (19 km north-east of Olimpiiska Street), and the Uragan rockets from an easterly direction, in the area of Zaichenko (15 km east of Olimpiiska Street), both controlled by the “Donetsk People’s Republic” (“DPR”).
http://www.osce.org/ukraine-smm/136061