ussian President Vladimir Putin said Sunday that the new inclusion of Western long-range missile systems in Ukraine's defenses would lead Moscow to hit “objects that we haven't yet struck.” 

Smoke billowed from Kyiv, hit by airstrikes after a lull in assaults on the capital city. Putin's threat came only days after the U.S. announced it was giving Ukraine advanced weaponry. 

Military analysts say Russia is hoping to overrun the embattled eastern Donbas region, where Russia-backed separatists have fought the Ukrainian government for years, before any weapons that might turn the tide arrive. The Pentagon said earlier this week it will take at least three weeks to get the precision U.S. weapons and trained troops onto the battlefield.

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Russian forces pounded railway facilities and other infrastructure early Sunday in Kyiv, which had previously seen weeks of calm. Ukraine's nuclear plant operator, Energoatom, said one cruise missile buzzed the Pivdennoukrainsk nuclear plant, about 220 miles to the south, on its way to the capital — citing the dangers of such a near miss.

In a posting on the Telegram app, the Russian Defense Ministry said high-precision, long-range, air-launched missiles were used. It said strikes on the outskirts of Kyiv destroyed T-72 tanks supplied by Eastern European countries and other armored vehicles located in buildings of a car-repair business.