BUENOS AIRES, Argentina — The world’s top financial officials meeting Sunday in Argentina’s capital called for more dialogue on trade disputes that threaten global economic growth, with one official warning that differences remain and tensions could escalate further.

The two-day gathering of G-20 finance ministers and central bankers in Buenos Aires took place as the United States and China are engaged in a full-blown trade war with both nations imposing tariffs on billions of dollars of each other’s goods.

A final communique from the meeting said that although the global economy remains strong, growth is becoming “less synchronized” and risks over the short and medium terms have increased.

“These include rising financial vulnerabilities, heightened trade and geopolitical tensions, global imbalances, inequality and structurally weak growth, particularly in some advanced economies,” the communique said. “We … recognize the need to step up dialogue and actions to mitigate risks and enhance confidence.”

As the Group of 20 gathering wound up Sunday, European financial affairs commissioner Pierre Moscovici said, “These meetings have been taking place in an international context which is very challenging. Trade tensions remain high and they threaten to escalate further.”

Representing the U.S. at the meetings was Treasury Secretary Steven Mnuchin, who on Saturday said the overall U.S. economy has not been harmed by the trade battles set off by Trump’s get-tough policies. But he acknowledged that some individual sectors have been hurt and said U.S. officials are looking at ways to help them.

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