Houthi rebels said they launched new missile and drone attacks on Saudi Arabia after seizing key positions on Yemen's Red Sea coast. The advances have rattled markets, pushed civilians towards Djibouti and sharpened fears of renewed war.

Iran-backed Houthis in Yemen have claimed new attacks on Saudi Arabia.

The date of the operation was not specified. Clashes have increased this week between the Iran-allied Houthis and Yemeni government forces, which are backed by Riyadh.

Explore the Houthis' rise in Yemen, their control of the Red Sea, and the impact on regional geopolitics.

Yemeni Houthi rebels claimed responsibility on Sunday for an attack on a military base in southern Saudi Arabia as renewed fighting with Yemen's government forces forced growing numbers of civilians…