The Organization for Security and Cooperation in Europe has confirmed that the shelling of Mariupol on Jan. 24, which killed at least 30 civilians, was carried out from the territory of Kremlin-backed insurgents.

“(The OSCE) conducted a crater analysis and its initial assessment showed that the impacts were caused by Grad and Uragan rockets,” the organization said in a report published on its website. “According to the impact analysis, the Grad rockets originated from a northeasterly direction, in the area of Oktyabr (19 kilometers northeast of Olimpiiska Street), and the Uragan rockets from an easterly direction, in the area of Zaichenko (15 kilometers east of Olimpiiska Street), both controlled by the Donetsk People’s Republic.”