By Enas Alashray and Tala RamadanCAIRO/DUBAI, July 15 (Reuters) - The U.S. conducted a new wave of strikes against Iran's coastal defence systems and missile sites on Wednesday after reimposing a naval blockade of Iranian ports, while Iran threatened to shut off more regional energy exports.The daytime strikes mark the latest escalation of attacks and counterattacks launched by the two sides as they vie for control of the Strait of Hormuz, which carried about a fifth of global oil and gas shipments before the war.

The United States launched fresh strikes on Iran after attacks across the Gulf, deepening tensions and raising fears over oil supplies.

US strikes hit Iran as Strait of Hormuz shipping falls, Gulf states activate defences and alarm sirens amid escalating regional tensions.

US-Iran war news: The United States initiated fresh military strikes against Iran on Tuesday. These strikes target capabilities allegedly used to attack commercial shipping.…