Ukraine war latest: Oil depots on fire in 2 Russian regions
Key developments on Oct. 4: * Oil depots on fire in Russia's Voronezh Oblast, Perm Krai * Russian forces less than 7 km away from Pokrovsk, authorities say * At least 177 Ukrainian POWs have died in Russian captivity, Kyiv says * EU readies to sanction Iran over missile shipments to Russia, Bloomberg reports