Talks between Russian President Vladimir Putin and U.S. President Donald Trump at the G20 summit in Japan covered multiple issues in a positive and constructive atmosphere despite their pressing differences, the Kremlin said Friday.

"In general, the two countries demonstrated the mood to establish a dialogue on all issues, including the controversial," Kremlin spokesman Dmitry Peskov was quoted by the RIA Novosti news agency after the meeting of the two leaders on the sidelines of the 14th G20 summit in Osaka.

He said that Putin and Trump discussed Syria, particularly the development in Idlib Province, and the position of Turkey in this context. They also spoke extensively on disarmament and strategic stability, according to the Tass News Agency.

Peskov said that the time constraints did not allow an in-depth exchange of views, but the parties managed to state that the level of bilateral trade and economic relations did not match the potential of the two countries and "agreed to see what factors prevent the horizons of trade and economic exchange from expanding."

According to Peskov, the presidents agreed this discussion should be continued in a more specific way between Russian Foreign Minister Sergei Lavrov and U.S. Secretary of State Mike Pompeo, as well as between Russian Finance Minister Anton Siluanov and U.S. Treasury Secretary Steven Mnuchin.

Putin invited Trump next year to attend the festivities of the 75th anniversary of the end of World War II in Moscow, which the U.S. president accepted, Peskov said.

Putin and Trump talked for about one hour and a half, according to media reports.

On Friday, Trump called it "a great honor" to meet with his Russian counterpart.

The two spoke informally at the event and at a lunch in Paris earlier that month. In May, they had their first extensive phone conversation in months.

"We've had great meetings. We've had a very, very good relationship," Trump said on Friday. "And we look forward to spending some very good time together."

According to a White House pool report, the two leaders reviewed the state of the bilateral relationship and agreed that improved relations were "in each country's mutual interest and the interest of the world."

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Before their official meeting, Trump jokingly asked Putin not to meddle in U.S. elections, appearing to make light of a scandal that led to an investigation of his campaign's contact with the Kremlin during the 2016 elections.

A two-year investigation into a Moscow-run influence campaign during the election has hung over Trump's presidency, frustrating the Republican president who has said he seeks better relations with Russia.

Trump and Putin were speaking to reporters in Osaka, ahead of their first formal face-to-face meeting since a controversial high-profile summit in Helsinki last July.

Asked by reporters whether he would raise the issue during their meeting, Trump said: "Yes, of course I will," drawing a laugh from Putin.

Trump then turned to Putin to give the directive twice, as he pointed a finger at the Russian leader. "Don't meddle in the election, please," Trump said.

Trump's critics have accused him of being too friendly with Putin and castigated him for failing to publicly confront the Russian leader in Helsinki after U.S. intelligence agencies concluded that Russian operatives had hacked into Democratic Party computers and used fake social media accounts to attack his opponent, Democratic candidate Hillary Clinton.

(With input from Reuters, Xinhua)