Yemen's Houthi rebels have released footage showing the detonation of explosives on the Greek-flagged oil tanker Sounion, raising concerns over a potential oil spill in the Red Sea. This attack disrupts vital maritime trade linked to the ongoing Israel-Hamas conflict and halts aid shipments to Yemen and Sudan. In Gaza, the World Health Organization is initiating a vaccination campaign against polio, triggered by the first confirmed case in 25 years. The campaign aims to immunize 640,000 children but faces significant logistical challenges amid ongoing violence. A three-day humanitarian pause has been negotiated for vaccinations, although experts doubt whether this timeframe will suffice. The resurgence of polio is attributed to poor sanitation and the destruction of infrastructure in the region.