An Italian CH-47 Chinook helicopter serving with the European Union peacekeeping force in Bosnia (EUFOR) crashed on Thursday in the country’s north, with “a number” of personnel killed or injured, according to the Associated Press.

Local officials told Bosnian media that three people died and 12 were injured in the crash near the town of Brcko, and EUFOR confirmed casualties and opened an investigation. Chinese state agency Xinhua reported the same toll of three killed and 12 injured.