US-Iran conflict: What next for oil and trade?

The US and Iran exchange fire for the first time in a month, as an oil tanker reportedly hits mines in the Strait of Hormuz. We look at what the renewed fighting could mean for oil supplies, shipping and the global economy. Also, China and Russia hold talks as world leaders gather for the Shanghai Cooperation Organisation summit. And after 15 years at the top, Tim Cook prepares to step down as CEO of Apple. Producer: Bisi Adebayo Presenter:Luke Wilson