US President Donald Trump has said he will have "a major statement" on Russia on Monday, without going into detail. Trump made the remark in a phone interview with NBC News on Thursday, referring to the situation in Ukraine. The president said, "I'm disappointed in Russia, but we'll see what happens over the next couple of weeks." Trump has recently been stepping up his criticism of Russia. He has suggested he would consider additional sanctions against Moscow. Russia's presidential spokesperson, Dmitry Peskov, said on Friday that Moscow is waiting for the statement to understand what exactly President Trump means.