US President Donald Trump says he does not plan to meet with Russian President Vladimir Putin until he thinks a deal is in place to secure peace between Russia and Ukraine.

"You have to know that we're going to make a deal, I'm not going to be wasting my time," Trump told reporters in Doha.

Trump was making a refuelling stop in Qatar on his way to the Association of Southeast Asian Nations summit, which starts on Sunday in Malaysia.

Kirill Dmitriev, Putin's envoy for investment and economic co-operation, said on Friday he believes Russia, the United States and Ukraine were "quite close to a diplomatic solution" to end the three-year war.

Speaking to CNN after arriving in Washington DC for talks with US officials, Dmitriev said a planned summit in Budapest between Trump and Putin had no

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