Russia’s military on Tuesday said it would retaliate against Ukraine after Kyiv attacked Russian regions by firing six US-made ATACMS ballistic missiles, six UK-made Storm Shadow cruise missiles and launching one of the biggest drone attacks to date.

Officials in several Russian regions, some hundreds of kilometres from the border, reported strikes overnight.

Moscow said on Tuesday that Ukraine had fired six U.S.-made ATACMS ballistic missiles, six UK-made Storm Shadow cruise missiles and at least 146 drones into Russia in an attack that it said would not go unanswered.

U.S. President-elect Donald Trump said on Monday he is going to meet Russian President Vladimir Putin "very quickly" after he takes office next week.

President-elect Donald Trump says that he is ready to meet with Russian President Vladimir Putin and that the meeting is being arranged, though he gave no timeline for when it might take place. “He wants to meet, and we are setting it up,” Trump told a reporter late Thursday at a news conference at his Mar-a-Lago resort in Palm Beach, Florida.

On the brink of his second presidency, Donald Trump signals bold moves that could redefine international relations as he meets with Vladimir Putin.