The US state of California’s power grid operator has declared an energy emergency, warning that it may institute rolling blackouts to curb a surge in demand, which has hit all-time record highs as residents crank up the AC to escape an unprecedented heat wave.

Ukraine has said it found no evidence of being attacked with such weapons, despite Washington’s assertion The US is peddling false information when claiming that Russia used North Korean missiles to attack Ukrainian targets, Moscow’s envoy to the UN Vassily Nebenzia told a Security Council meeting on Wednesday.

Moscow’s policy will not be dictated by Washington, the deputy foreign minister said The US is taking an increasingly aggressive stance towards Moscow, but no amount of economic sanctions and political pressure can sway it from defending its national interests, a top Russian diplomat said.