Russian Foreign Ministry said in a statement on Thursday that it summoned the UK ambassador to protest against the offensive British rhetoric towards Russia.
"UK voiced deliberately false information about alleged Russian threat to use nuclear weapons," the statement said.
The Russian Foreign Ministry said a strong protest was expressed to Ambassador Deborah Bronnert over "the frankly boorish statements of the British leadership regarding Russia, its leader and official representatives of the authorities, as well as the Russian people".
It said Bronnert was handed a memorandum stating that "offensive rhetoric from representatives of the UK authorities is unacceptable. In polite society, it is customary to apologize for such statements."
The ministry said Russia had told her it objected to British statements containing "deliberately false information, in particular about alleged Russian 'threats to use nuclear weapons'".
It was not immediately clear what specific remarks the statement was referring to.
Britain has voiced strong support for Ukraine in its war with Russia and provided it with weapons, making it a frequent target of Kremlin criticism.
