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"Members of the border department of Russia's FSB in Kursk Oblast detained a 31-year-old citizen of Ukraine who illegally crossed the state border, moving from Ukraine to the Russian Federation," the press service told UNIAN.

Read alsoUkraine MFA warns Ukrainians of dangers of traveling to Russia"During the detention he tried to shoot back and made an attempt to hide in Ukrainian territory. During the shooting, he received gunshot wounds of moderate severity," it said.

The Russian FSB claims that the "offender" allegedly possessed two guns and five hand grenades. In addition, he allegedly had fifty 5.45mm rounds and 26 ampoules with gray liquid (presumably mercury).