Russia's military build-up near Ukraine is growing, not shrinking, warns West

Russian military aircraft fly during the exercises of the Russian Navy in the Mediterranean Sea, February 15, 2022. Russian Defence Ministry/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT. NO RESALES. NO ARCHIVES.

MOSCOW/KYIV (Reuters) - There is a growing Russian military presence at Ukraine's borders, Western countries warned on Wednesday, as Estonia said battle groups were moving ahead of a likely attack to occupy "key terrain," contradicting Moscow's insistence of a pullback.

More armored vehicles, helicopters and a field hospital have been spotted, Britain's defense intelligence chief said in rare public comments.