"Any country aligning themselves with the Anti-American policies of BRICS, will be charged an ADDITIONAL 10% tariff. There will be no exceptions to this policy," Trump wrote on social media.
A deadline for countries to agree a tariff deal with the US had been set for 9 July but US officials now say they will begin on 1 August. So far, the US has only struck trade agreements with the UK and Vietnam. However, Britain and America have still not reached a deal over taxes for UK steel imported by the US.