Ukrainian President Volodymyr Zelensky said Russia refusing to accept a ceasefire was complicating efforts to end Moscow’s more than three-year-long conflict.

“We see that Russia rebuffs numerous calls for a ceasefire and has not yet determined when it will stop the killing. This complicates the situation,” he said in a social media post late Saturday.

“If they lack the will to carry out a simple order to stop the strikes, it may take a lot of effort to get Russia to have the will to implement far greater — peaceful coexistence with its neighbors for decades.”