US President Donald Trump expressed confidence Thursday that US-Russian relations will "work out fine," as he looked to China to "deal properly" with North Korea.

"Things will work out fine between the U.S.A. and Russia. At the right time everyone will come to their senses & there will be lasting peace!" he tweeted.

With Pyongyang apparently poised to conduct a nuclear test, Trump said he had "great confidence that China will properly deal with North Korea," though he added: "If they are unable to do so, the U.S., with its allies, will! U.S.A."