A vessel was struck by an unknown projectile while transiting the Strait of Hormuz early Sunday, according to the UK Maritime Trade Operations agency. The damage and crew status remain unknown, prompting warnings for ships to exercise caution.

Iranian state media reported that an Iranian commercial vessel was hit off Qeshm Island near the strait, killing one crew member and wounding three others. It was unclear if the incidents involved the same ship.

The attack follows Saudi Arabia's decision to temporarily shut its East-West oil pipeline after a drone strike attributed to Iranian-backed militias operating from Iraq. Satellite images showed smoke rising from the pipeline area south of Medina, with injuries reported but export impacts still under assessment.

Houthi forces in Yemen, backed by Iran, claimed responsibility for drone and missile strikes on a Saudi military base in the Sharurah region, injuring two people and damaging buildings including a mosque. The group has also advanced rapidly along Yemen's Red Sea coast, seizing the port of Mokha and islands that bolster their position near the Bab al-Mandeb Strait.

These developments compound disruptions to global shipping routes. Iran and Oman have agreed on new entry and exit routes through the Strait of Hormuz, with a regional briefing planned for Monday in Muscat.

President Trump, attending a golf event in Ireland, indicated Iran was likely responsible for the pipeline attack. Shipping volumes through the strait have already fallen sharply due to prior Iranian actions, forcing reliance on alternative paths now also under threat.

The coordinated pressure from Iran and its proxies raises risks to energy markets and international trade at a time of heightened regional tensions.