Putin warns West of lightning retaliation for intervention in Ukraine

Russian President Vladimir Putin attends the Orthodox Easter service in the Christ the Savior Cathedral in Moscow, Russia, Sunday, April 24, 2022. Picture: AP Photo/Alexander Zemlianichenko, Pool

Russian President Vladimir Putin warned of lightning-fast retaliation if countries interfere in Ukraine, while US President Joe Biden was set to comment on Thursday in support of Ukraine's fight against "Russia's brutal war".

Russia has told the United States to stop sending arms to Ukraine, saying large Western deliveries of weapons were inflaming the conflict.