MOSCOW, December 4. /TASS/. Russian border guards have foiled an illegal border crossing attempt by three armed perpetrators from Ukraine. As the Public Relations Center of the Federal Security Service (FSB) told TASS, after exchanging fire one of them was killed, two others fled.

"The incident occurred at the section of the border under the FSB Directorate for the Belgorod and Voronezh Regions on December 4. A border guard detachment thwarted the border violation attempt from Ukraine into the Russian Federation by three armed unidentified individuals. During an attempt to detain them, the perpetrators responded with armed resistance," the Public Relations Center reported.

As a result of a retaliatory fire, one of them was fatally injured, the two others fled to the territory of Ukraine.

The investigation is underway. The FSB has not reported yet other details of the incident.