US President Donald Trump and Russian President Vladimir Putin greeted each other at an APEC summit in Vietnam on Friday.
The two leaders also shook hands and exchanged a few words, reports Reuters quoting Russian news agencies.
Trump approached Putin at a photo session of world leaders in the Vietnamese city of Danang and gave him a friendly slap on the shoulder.
Kremlin spokesman Dmitry Peskov was cited by the RIA news agency as saying that the two men had not held any talks yet however, something Moscow has been trying to set up for days.