International Monetary Fund (IMF) Managing Director Christine Lagarde arrives for the G20 leaders summit in Buenos Aires, Argentina November 30, 2018. REUTERS/Luisa Gonzalez

BUENOS AIRES (Reuters) - International Monetary Fund Managing Director Christine Lagarde called on G20 leaders to urgently de-escalate trade tensions and reverse tariff hikes, warning that they risked slowing global growth.

“Pressures on emerging markets have been rising and trade tensions have begun to have a negative impact, increasing downside risks,” Lagarde said in a statement issued at the conclusion of the G20 summit in Buenos Aires.