The Houthi threat in the Red Sea and Gulf of Aden means some shipping companies are diverting ships around Africa, increasing costs significantly.

There have been 136 attacks on commercial vessels in the area since last November, and container lines have no timetable for a Red Sea return.

Yemen’s Houthi rebels launched multiple drones and a missile at three commercial ships being escorted in the Gulf of Aden by U.S. Navy ships, a U.S. official said Tuesday. The three U.S. affiliated flagged ships were sailing east toward Djibouti.

Two US Navy destroyers repelled a missile-drone attack by Yemeni Houthi rebels targeting commercial vessels in the Gulf of Aden. No civilian ships or crew were harmed, reports the US Central Command (CENTCOM).