Russian President Vladimir Putin has ordered officials to tighten control of the border with Ukraine after a spate of drone attacks that are creating a new challenge for Moscowa year after it invaded its neighbor.
According to the defense ministry, one drone crashed on Tuesday just hundred kilometers southeast of the Russian capital Moscow, while two more were brought down in southern Russia.
Authorities also closed the airspace over the northern city of St Petersburg in response to what some reports said was a drone, while several Russian television stations aired a missile attack warning that officials blamed on hacking.
Authorities have not specified what infrastructure may have been targeted, but Russian energy giant Gazprom operates a facility near the village of Gubastovo, where the drone crashed.
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