Iran effectively closed the Strait of Hormuz, a key waterway off its coast through which 20% of global oil passes, in response to U.S.-Israeli strikes, according to multiple reports. China's Foreign Minister Wang Yi held a phone call with Iranian counterpart Abbas Araghchi, seeking assurances for international navigation amid the tensions. Details of the call and related escalations, including a reported U.S. naval blockade, remain unverified.