White House press secretary Sarah Sanders said President Trump and Russian President Vladimir Putin will not have a widely anticipated meeting while they are in Vietnam at the Asia-Pacific Economic Cooperation summit, but left the door open that the two may interact during the conference.

“Regarding a Putin meeting, there was never a meeting confirmed, and there will not be one that takes place due to scheduling conflicts on both sides,” Sanders said, according to a press pool report right before Air Force One landed in Vietnam on Friday.

“There is no formal meeting or anything scheduled for them. Now, they’re going to be in the same place,” she added. “Are they going to bump into each other and say, 'Hello'? Certainly possible and likely. But in terms of a scheduled, formal meeting, there’s not one on the calendar and we don’t anticipate that there will be one.”

Trump signaled a meeting with Putin was possible earlier in the week.

Special counsel Robert Mueller, along with several congressional committees, are investigating whether the Trump campaign colluded with Russia during the 2016 election.

Trump is in the middle of a nearly two-week tour through Asia.