The head of the International Monetary Fund is calling for quick action to end uncertainty over Britain's vote to leave the European Union that she says is dampening global economic growth.

Christine Lagarde said Friday the IMF cut this year's global growth forecast by 0.1 percentage points due to the British vote. She spoke ahead of a weekend gathering of finance officials from the Group of 20 major economies.

Lagarde said, "Our first and immediate recommendation is for this uncertainty surrounding the terms of Brexit to be removed as quickly as possible so that we know the terms of trade and the ways in which the United Kingdom will continue to operate in the global economy."