Russia's ambassador to Britain chillingly threatened “a new dimension” in the war with Ukraine today.
Andrei Kelin accused the UK of fuelling an “escalation” in the 15-month conflict by supplying long-range missiles to Kyiv and helping the regime obtain fighter jets.
Issuing the warning, the envoy claimed nuclear-armed Moscow had "enormous resources" and, despite the war already raging for over a year, his country was yet to "act very seriously".
