Mayor warns residents in Ukrainian capital that enemy is throttling power supplies, wants them all to die; future of country depends on being ready for 'different situations'

Talks take place amid multiple crises including European conflict, high inflation, food shortages and energy crunch; top UN scientist highlights 'once in a generation opportunity'

Biden administration not pushing Kyiv to actually sit with Putin, but wants to assuage global concerns over war's impact on cost of living, Washington Post reports

Kyiv makes comments after Iran admits for the first time that it sent drones to Russia, while insisting they were supplied before invasion

Ukraine dismantled Lenin statues across the country after its 2014 revolution overthrew a Moscow-backed regime as part of country's 'de-communization drive'

Iranian FM admits Tehran gave Moscow a 'limited number' of UAVs but insists transfer was before Russian forces invaded Ukraine

CNN says Tehran asked Kremlin for nuclear material and fuel; could shorten the time it would take to build a nuclear weapon

Former president, who once cast himself as a liberal modernizer, says Moscow has ability to 'send all our enemies to fiery hell'

US media reports Moscow will respond if military equipment is supplied directly or through third party; separate report says Iran asked Russia for help on nuclear program

Experts say use of Iranian weapons in Ukraine war may be a 'warning' to Western powers; arms sales between the two countries remains a global concern