In a press briefing Maria Zakharova the spokesperson for Russia’s foreign
affairs ministry has issued another stern warning to Western countries –
and in particular the UK – over encouragement given to Ukraine to strike
within Russian territory. She said Ukraine’s President Volodymyr Zelenskiy
was “being used” by the west, and told the west to stop trying the
patience of Russia. She also threatened strikes on visiting Western
dignitaries in Ukraine, saying:

Such aggression against Russia cannot remain without an answer. We would
like Kyiv and western capitals to take seriously the statement by the
Russian ministry of defence that further provocation prompting Ukraine to
strike against Russian facilities will be met with a harsh response from
Russia.

Advisors from Western countries staying in Ukraine’s decision-making
centres will not necessarily be a problem for Russia’s response measures.
We do not advise to continue trying our patience.

She cited UK armed forces minister James Heappey by name, saying that his
words suggesting it was “entirely legitimate” for Ukraine to strike at
Russian logistics over the border had been taken in Kyiv as a call to
action.

She said “In other words, [Heappey was] effectively calling for Kyiv to
use weapons provided by Nato countries.”

https://www.theguardian.com/world/live/2022/apr/28/russia-ukraine-war-putin-warns-of-lightning-fast-retaliation-if-west-intervenes-war-has-cost-ukraine-600bn-zelenskiy-says-live