President Vladimir Putin ruled out a ceasefire on long-range strikes with Ukraine as Moscow stepped up its campaign of aerial attacks on Kyiv. (EPA Images pic)

MOSCOW: Russian president Vladimir Putin on Thursday ruled out a long-range strikes ceasefire with Ukraine as Moscow steps up its campaign of aerial attacks on Kyiv.

Russia has ramped up such strikes, with Ukraine charging that Moscow is deliberately hitting civilian targets and putting Kyiv on a near-constant state of alert as it braces for another tough winter.

Ukraine has responded with attacks targeting Russian refineries, oil and fuel depots and exporting facilities to try and cut off Moscow's energy revenues.

"We are told: 'Let them stop striking your refineries, and you will stop striking their ships.' It is simply ridiculous," Putin said.