Four people are presumed dead and 11 others are still missing after a Liberian-flagged cargo ship sank in the Red Sea following an attack by Yemen's Houthi rebels, a European Union naval mission said Friday.

Commercial ships still sailing through the Red Sea are broadcasting messages about their nationality and even religion on their public tracking systems to avoid being targeted by Yemen's Houthis after deadly attacks this week by the militia.

Houthi rebels in Yemen attempted to strike Israel’s Ben Gurion airport after sinking two vessels in the Red Sea this week, as the group ramps up its military pressure in support of Palestinians under Israeli fire in its bid to bring the war in Gaza to an end.