Biden issues strongest warnings yet that Russia is considering using chemical weapons

Biden said Russia's false accusations that Kyiv had biological and chemical weapons illustrated that President Vladimir Putin was considering using them himself.

Ukrainian firefighters extinguish a blaze at a warehouse after a bombing in Kyiv. Picture: AP Photo/Vadim Ghirda

Ukraine's military said on Tuesday residents should brace for more indiscriminate Russian shelling of critical infrastructure, as US President Joe Biden issued one of his strongest warnings yet that Moscow is considering using chemical weapons.

Russian troops have failed to capture any major Ukrainian city more than four weeks into their invasion, and increasingly are resorting to causing massive destruction to residential areas using air strikes, long-range missiles and artillery.