United States Secretary of State Rex Tillerson on Friday said President Donald Trump had “pressed” his Russian counterpart Vladimir Putin over Moscow’s alleged meddling in the 2016 presidential elections, Reuters reported. Trump had raised concerns of the American people regarding the allegations and the two had “a robust exchange”, Tillerson said.

“Putin denied such involvement, as he has done in the past,” Tillerson said, according to ABC News. “They agreed to exchange further work regarding commitments of non-interference in the affairs of the US and our democratic process as well as other countries.” The US secretary of state further said that the two leaders shared a “positive chemistry” during their meet.

Meanwhile, Russian Foreign Minister Sergey Lavrov said that the US president had “accepted Putin’s clear statements” about Kremlin’s non-interference with the elections, AFP reported. The minister further said that the allegations against Russia have “acquired quite a strange character”, however, there hasn’t been a “single fact” that has come out.

Trump and Putin held a two-hour long interaction on the sidelines of the G20 Summit in Germany’s Hamburg on Friday. “We have had some very, very good talks,” said the US president. “We are going to have a talk now and obviously that will continue. We look forward to a lot of very positive things happening for Russia, for the United States and for everybody concerned.”

Putin and Trump have individually denied allegations about Trump’s links with Moscow and Russia’s role in the US presidential election.

However, relations between the two countries are tense given the continued US’ sanctions against Russia for invading Crimea, an ongoing Federal Bureau of Investigation into Russian meddling in the 2016 US elections and the prevailing situation in Syria, where the US and Russia are on opposite sides of a civil war.