From Our Own Correspondent

Kate Adie introduces stories about China's alleged 'Fentanyl King', how Odesa's famous sense of humour is responding to Russian attacks, Delhi's new EV push, and rising child obesity rates in southern Italy.After Zhang Zhidong graduated from China's most-prestigious university, he moved to Mexico to find work. Years later, US law enforcement named him as a key figure working with Mexican cartels in the booming fentanyl trade. Now awaiting trial in a Brooklyn prison, Zhidong denies the allegations against him. Shawn Yuan travelled to Mexico to speak to cartel about the man they knew as 'Brother Wang', to chart the origin story of the man US authorities claim is the 'Fentanyl King'. The Ukrainian port city of Odesa is renowned for its sense of humour - and it's still apparent even as Russia ramps up attacks in its efforts to strangle Ukraine's commercial links with the rest of the world. Paul Adams has been speaking to residents trying to continue life as normal amid the daily strikes.Faced with soaring polluti