Presidents of Russia and the United States Vladimir Putin and Donald Trump can hold their meeting at any moment, Kremlin aide Yury Ushakov said.
"The issue is on the agenda but has not yet moved thus far to the practical sphere. The parties nevertheless keep in mind to put it forward in one way of other. Where and when - it is difficult to say this so far, certainly. It can be at any moment," Ushakov said.
He does not rule out a spontaneous meeting between the two presidents.
"There could be a prepared meeting with teams negotiating agreements in advance. Alternatively, leaders might decide: ‘Let's meet now and discuss everything ourselves, then instruct our teams later.’ This option is certainly possible," Ushakov said.
Much depends directly on decisions of the two presidents, he said.
According to the official, the more preferable is an option where there is an opportunity to work out some documents, so that the meeting is more fruitful, more significant, more material for further development.