Update:

TRUMP-PUTIN MEETING ANNOUNCEMENT WILL COME THURSDAY: BOLTON

PUTIN, TRUMP BOTH CONSIDER MEETING `IMPORTANT,' BOLTON SAYS

The United States and Russia have reached an agreement on a summit between Donald Trump and Vladimir Putin and will announce the date and other details on Thursday, reports Bloomberg, citing a senior Kremlin official.

U.S. officials have said the meeting -- the third between the two men -- could take place at the end of Trump's visit to Europe in mid-July. Finnish President Sauli Niinisto said his Nordic nation is ready to host the summit after Politico reported that the White House is eyeing Helsinki as the preferred option. Bolton discussed details of the planning at a working lunch with Russian Foreign Minister Sergei Lavrov before he met Putin. -Bloomberg

Earlier in the day, Putin hosted US National Security Adviser John Bolton for a pre-summit discussion that lasted around two hours. The two reportely talked about nuclear arms control, conflicts in Syria and Ukraine, the situation in North Korea and the Iran nuclear deal, according to Russian officials.