The International Monetary Fund says more need to be done to ensure global financial stability. On Wednesday's press conference for the 2016 Global Financial Stability Report, monetary and markets chief Jose Vinals said additional measures are needed to deliver a more balanced and potent policy mix.

He also commented on negative interest rates saying, there are limits -- but they can also benefit economies where they are deployed. Vinals expressed concern over Britain's exit from the European Union. He said it would be a negative shock  -- both economically and financially -- for Britain and the EU. In the report, the IMF said world financial markets have calmed after turmoil earlier this year -- but action needs to be taken amid slowing growth, weak commodity prices, and worries about China's economy. Let's hear what Vinals says.