RUSSIA’S ministry of defence has unveiled the latest addition to their devastating robot army – a sentry gun that can identify and shoot dead a human from more than four miles away.
The robotic guardian can be deployed in just 30 seconds and fire both bullets and grenades to take out its targets.
The Russian military is believed to have developed the hi-tech defence system to take out low flying drones and other ariel weapons.
But it will do more for the Russian military than just shoot down an incoming drone.
The weapon is equipped with technology to track the movement of an incoming device and discover its origin before blasting it out of the sky.
The killer robot can use radar, thermal imaging and both colour and black and white video cameras to give bunkered down Russian soldiers the best view of their target before they annihilate it.
Chief project engineer, Dmitry Perminov, said: "In its structure, there is a radar unit that detects a target: human - to about 7km distance, the car - up to 10km.
"After detection, the target is in engaged using an optical system."
But while it was developed for war zones it could be used for homeland security to defend borders and oil pipelines - as well as to spy on the unsuspecting.
Mr Perminov added: ”This system can be applied not only as a military interface
but also for the protection of any strategic objects.
"Interest in it is not only the military but also in oil to control the pipeline and stop tapping and the theft of oil.
"We already had a real case during the system test. At some point, the robot recorded the theft of electric cables.
"It filmed a video where a man was seen sawing a wire. A team was sent out and he was caught red-handed."
He also claimed upgrades will mean the semi-self-aware robot will be able to identify the difference between an ally and an enemy.
It comes as Finnish intelligence agencies claim Russia is secretly buying up plots of land in the country to prepare for an invasion.
Security police force SUPO claimed foreigners were purchasing sites in Finland to house Russian troops, according to Finnish tabloid Iltalehti.
A SUPO report submitted to a parliamentary committee reportedly warned: "These measures may be caused by preparations to influence a forthcoming crisis situation.
"They could be land transactions, which do not appear to be business or related to the normal real estate value."
The agency added that the land purchases could be used by a "foreign state in a crisis situation to take advantage of, for example, the closure of transport routes or unmarked accommodation of troops".