Iran to Close Strait of Hormuz if US Violates Ceasefire

Iranian authorities will close the Strait of Hormuz again if the United States violates the ceasefire agreement. Since Friday (17/4/2026), several ships have been detected successfully passing through the narrow waters safely. However, it will be closed again if the US blockades the shipping route. The Islamic Revolutionary Guard Corps (IRGC) has emphasised that approaching the Strait of Hormuz will be considered collaboration with the enemy. The US sea blockade has caused 23 merchant ships to be unable to pass through the Strait of Hormuz. Iran’s Supreme National Security Council (SNSC) views this as a violation of the ceasefire. In addition, the US has submitted a new proposal regarding the end of the war, which the SNSC has accepted. “We are having very good conversations. Everything is going very well,” said Trump. West Texas Intermediate oil for May delivery rose to $89.74 (approximately Rp 1.54 million) per barrel. Brent oil for June delivery rose to $95.59 (Rp 1.64 million) per barrel. Oil prices are predicted to continue rising as the US seizes an oil tanker in the Strait of Hormuz on Saturday (18/4/2026). “Trump refuses to lift the US naval blockade against Iran. Tehran then changed its stance and said the strait will remain closed until the blockade is lifted,” reported CNBC.