G20 Agriculture Ministers is seen at an visit at the 132th annual Argentine Rural Society's Palermo livestock and agriculture camp exhibition in Buenos Aires, Argentina, July 28, 2018.REUTERS/Martin Acosta

BUENOS AIRES (Reuters) - The G20 agriculture ministers gathered in Buenos Aires this weekend had a “frank discussion” about the fact that they do not want unilateral protectionist measures, German Agriculture Minister Julia Klockner told reporters on Saturday.

In a joint statement, the ministers agreed not to adopt “unnecessary obstacles” to trade as global trade tensions escalate.