A Ukrainian military helicopter Mi-8 crashed late on Wednesday, killing all four crew members.
Ukrainian land forces confirmed the incident on Thursday, but are yet to reveal the exact cause of the crash.
On its Facebook page, Armed Forces of Ukraine said it lost connection with helicopter late on May 29.
Rescuers and law enforcers are working at the site.

At least 73 injured after Houthi rebels attack Saudi civilian and energy facilities
Nepal rescue focused on workers trapped in three tunnels
Indonesia reopens Jakarta airport, four others after Anak Krakatau ash clears
Russia hits Kyiv after brief pause for US envoys' visit, killing two
Kenya offers temporary amnesty to undocumented East Africans amid crackdown fears
