The Russian president's refusal comes after his Ukrainian counterpart wrote an open letter calling for face-to-face talks.
The Russian leader insisted military action would only stop after Moscow achieves its 'goals'.
Russia and Ukraine have been holding peace talks since the war began in 2022, but with no concrete outcome.
Russia has launched one of its largest attacks on Kyiv since the war began, firing hundreds of drones and missiles.
Ukraine’s air force says the attack on Thursday was part of the largest aerial assault since the war began.
One killed and four others wounded in attacks on Ukraine's Dnipropetrovsk region, local administration chief says.