Iran's Supreme National Security Council said, for security reasons vessels should transit only at designated times and along designated routes.

On the 18th the Israeli Defense Forces struck multiple sites in southern Lebanon's Nebetiyeh region with drones and artillery, killing three. A drone hit a vehicle in Taibnit village, killing two; an early-morning drone strike struck western Jibdin, killing one. Israeli artillery also shelled mountainous terrain south of Jibdin.

June 18 — The Cyberspace Administration of China, the Ministry of Industry and Information Technology and the Ministry of Public Security jointly issued the Measures for Network Data Security Risk Assessment, effective August 20, 2026. The measures set out assessment requirements, legal basis and formats. Important data processors must conduct annual risk assessments; if an important data security status undergoes material change that could harm data security, they must promptly assess the changed elements and their impact. Network data processors handling general data are encouraged to carry out risk assessments at least once every three years. Assessments must comply with laws, regulations and relevant national standards. Network data processors may conduct assessments internally or commission third-party assessment agencies.