Some countries across Asia have announced measures to deal with the impact of soaring global energy costs caused by the US-Israel war with Iran, including capping petrol prices.

On Monday, crude oil surged above $100 a barrel on concerns about potential shortages due to prolonged disruption to Middle East energy supplies.

At the weekend, Iran named Mojtaba Khamenei as its new Supreme Leader - a sign that hardliners remain in charge of the country - while some Gulf countries halted oil production and there were fresh airstrikes in the region.