The Yemeni militia, backed by Iran, said it had sunk a Liberian-flagged cargo ship in the Red Sea. Liberia said the attack killed two crew members.

Two sailors were killed in an attack on a Liberian-flagged cargo ship off Yemen, a Liberian U.N. delegation said Tuesday, in an incident that marked the first fatalities from a Red Sea shipping attack in over a year as Yemen’s Houthis resume operations.