Russia has started moving an armoured fighting vehicle nicknamed the "Terminator" around a Ukrainian city which shows their "determination" to capture the area, a military expert has told Sky News.
Russia is reported to be "bringing them in around Severodonetsk" in Ukraine - showing its "determination to assault that city".
The BMPT-72 was developed by Russian machine company Uralvagonzavod and was built on the chassis of the T-72 battle tank.
It can carry heavy force during any assault as well as increase the success of a tank operation.
The vehicle has an unmanned turret armed with four launchers and can engage with other tanks and artillery, including low-flying helicopters.