US President Donald Trump said on Sunday that Ukraine and Russia had agreed to what he described as an "energy ceasefire."
Trump, in a social media post, said the energy ceasefire was taking effect immediately, but did not elaborate further.
Zelensky said that Trump's ceasefire announcement "was news for me," he told Axios following the announcement.
"But if Russians agree to an energy ceasefire, Ukraine will agree," he added.
Earlier on Sunday, President Volodymyr Zelensky said in response to critical comments from Trump that he will organize Ukraine elections if Russian President Vladimir Putin agreed to a 60-day ceasefire.
"Please tell Putin, give us two months, 60 days of total ceasefire, 60 days, and we will organize elections," Zelensky told ABC's "This Week."
Trump on Saturday criticized Zelensky for attacking Russian oil refineries a day after the US temporarily lifted sanctions on Russian fuel that were designed to deprive Moscow of revenues to fund its war in Ukraine.
"I think it's time for Ukraine to get a new president," Trump had told reporters at the White House.
Zelensky says Ukrainians will choose next leader
In response, Zelensky said "it's up to Ukrainians" to choose their leader and noted that Putin would also like to change who is leading Ukraine.
He said it is easy for Ukraine to be blamed for higher fuel prices "when everybody in the world understands (that) because of the war in (the) Middle East, the prices are rising."
Earlier on Sunday, Zelensky said Ukraine was ready to halt attacks on Russian oil refineries if Moscow ceases its own strikes on Ukrainian energy infrastructure.
EU's Ursula von der Leyen supports Zelensky's call for Russia ceasefire
European Commission President Ursula von der Leyen fully supported Ukrainian President Volodymyr Zelensky's call for a ceasefire with Russia, the European Commission said in a statement on Sunday.
The EU will discuss funding needs for Ukraine at its next meeting