In a sharp response to a new maritime embargo, seven oil tankers have suddenly turned back from Yemen, according to data from MarineTraffic. The vessels—originally bound for Saudi ports—diverted at the Bab al‑Mandab Strait, a key choke point that links the Arabian Sea with the Red Sea and ultimately the Mediterranean.
The Red Sea carries about 15 % of world sea trade. Since the US‑Israeli war with Iran forced the closure of the Strait of Hormuz, Saudi Arabia has leaned on the Red Sea to move crude oil, making the strait a lifeline for regional and global markets.
The timing of the U‑turns coincides with the Houthis’ announcement that vessels cannot load or discharge cargo at Saudi ports. Military analysts warn that any attack would ripple from tankerflows to the ground, threatening the coastal ecosystems and the people who depend on them. Indigenous salmon and coral‑reef communities along the Gulf of Aden have noted that oil spills would kill fish, erode mangrove corridors, and impair fisheries that sustain local economies.
The EU naval task force Aspides has urged all merchant vessels linked to Israeli, US or Saudi interests to avoid the Red Sea until the threat level lowers. In the meantime, Saudi Arabia’s laboratories in Yanbu have reported a surge in exports to keep the flow of energy moving beyond the strait, but this will raise freight costs and therefore consumer prices.
Boats caught in the region are also broadcasting armed‑guard panels to deter attacks. According to MarineTraffic data, over 50 vessels now carry armed guards, a sign of heightened anxiety that echoes the Houthi‑related attacks in 2023, where four ships sank and nine crew members died.
For coastal tribes, the impact is immediate and long‑term. The Red Sea is not only a corridor of commerce but a source of fish, seaweed and salt products that many indigenous cultures harvest. A blockade or oil spill would halt fish migration, collapse reef habitats, and potentially erase cultural practices embedded in marine stewardship.
Additional reporting by Barbara Metzler



















