President Trump's trade war is causing the global economy to slow, with growth now heading for its weakest pace since the COVID-19 pandemic, the OECD warned on Tuesday. The OECD cut its forecasts for most G20 economies and warned that easing trade tensions is key to boosting investment and keeping prices stable.

Global economic growth is slowing more than expected only a few months ago as the fallout from the Trump administration's trade war takes a bigger toll on the U.S. economy, the OECD said on Tuesday, revising down its outlook.

Donald Trump’s combative trade policies have tipped the world economy into a downturn, with the US among the hardest hit, the OECD said.