Fighting in Yemen intensified as government forces attacked Iran-backed Houthi rebels along the Red Sea while the Houthis launched attacks toward neighboring Saudi Arabia.

The Houthis recently captured the port city of Mokha and an island near the Bab el-Mandeb Strait, increasing their control over a crucial shipping route.

The escalating attacks on Saudi oil facilities and Red Sea shipping are raising concerns about global oil supplies and prices.

More than 80,000 people have been displaced by the fighting since the beginning of September, with civilians reporting deadly attacks and widespread destruction, the AP has reported.

Yemen’s government has vowed to send more forces to the Red Sea coast as fears grow that the country could return to a full-scale civil war.