The UK government is imposing further sanctions against Russia's "war leaders", with the Foreign Secretary vowing to crack down on those with "Ukrainian blood on their hands".
The Foreign, Commonwealth and Development Office (FCDO) said the move will target those "commanding the front line" and those outside the military who are "actively supporting" Russian President Vladimir Putin's invasion of Ukraine.
Foreign Secretary Liz Truss tweeted: "Today I announce new sanctions on those with Ukrainian blood on their hands including the commander of the unit which occupied Bucha and other individuals and businesses supporting Putin’s military.
"We are relentless in support of Ukraine."
Among the targets are "key leaders" of Russia's army such as Lt Colonel Azatbek Omurbekov, a commanding officer with involvement in the Bucha massacre, the FCDO said.
Also included are Colonel General Andrey Serdyukov, commander of airborne forces; Major General Valery Flyustikov, commander of special operations forces; and Colonel General Nikolay Bogdanovsky, first deputy chief of the general staff.
The non-military individuals sanctioned include Oleg Belozyorov, the chief executive and chairman of vital logistics company Russian Railways; and Ilya Kiva, the defecting and expelled Ukrainian MP who has publicly supported Russia’s actions in Ukraine.
Ms Truss said the Russian military had deliberately targeted civilians, adding: "The depravity of Russia’s assault on the people of Ukraine is plain for all to see.
"They are deliberately targeting hospitals, schools, and transport hubs in Mariupol and beyond – just as they did in Chechnya and Syria."
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Earlier this month, Mr Putin's spokesman Dmitry Peskov dismissed evidence of war crimes in Bucha.