The cease-fire expired at midnight earlier in the day . Putin spoke Monday with Ukraine 's Poroshenko and intermediaries . ( CNN ) -- Ukrainian President Petro Poroshenko said early Tuesday that his country will not renew a cease-fire with pro-Russian separatists , vowing instead `` we will advance , and we will liberate our land . '' He says it takes all parties to maintain peace .
The cease-fire expired at midnight earlier in the day . Putin spoke Monday with Ukraine 's Poroshenko and intermediaries . He says it takes all parties to maintain peace .