The Russian military conducts drills simulating conflict situations near the shared border with Ukraine.

These scenes were filmed on Friday.

They've been holding exercises there since April at the beginning of the conflict in eastern Ukraine between government forces and pro-Russian separatists.

NATO members in the west of the country have also held drills in a show of support for Kiev.

Nearly 4,000 people have been killed in the conflict in eastern Ukraine.

A ceasefire's been in force since September but there have been isolated flareups of fighting.