The G20 group of finance ministers have said that trade tensions could undermine the global economy.
They called for greater dialogue to reduce the risk after a tense, two-day meeting in Argentina.
BBC: Trade tensions pose a risk to global growth, say G20 ministers
German Chancellor Angela Merkel talks to Russia's President Vladimir Putin at the start of the first working session of the G20 meeting in Hamburg, northern Germany, on July 7.
