"Clearly as a result of (rate hikes)... we see and we will continue to see capital flow movements," she added.
"The fact that large central banks of advanced economies are not exactly all moving at the same pace is also probably accelerating that phenomenon." She reiterated her call for the world to come together to address the challenges.
"De-escalate, fix the system, and don't break it," she said.
Trump has levied or threatened tariffs on goods from economies around the world, notably China, but also on traditional allies such as the European Union.
The head of the World Trade Organization warned that a "full-blown commercial war" could shrink global trade by nearly 18 per cent and also knock worldwide GDP, hurting the United States, China, and others.