World leaders, businesses, and consumers have started to grapple with what tariffs announced by the US president Donald Trump really mean. Global markets are already reacting, with volatility in stocks, currency shifts, and businesses weighing the costs of these tariffs. China has angrily condemned Donald Trump's announcement of swingeing tariff increases on imports from around the world. These tariffs hit hardest to some of the world's poorest countries, including Cambodia, Bangladesh and Laos.

Sam Fenwick hears about the global impact of these tariffs and how world leaders and businesses are reacting to them.