TEHRAN (Press Shia) – While the Saudi regime is becoming increasingly frustrated with its lingering and costly military campaign against Yemen, it lost six more troops on Friday when the Yemeni Army launched an attack against a base in the Saudi province of Najran.

According to al-Masirah television, the Yemeni Army, backed by fighters from the allied Popular Committees, hit a headquarters controlling joint military operations, located in al-Khadhra, near Yemen’s northern borders on Friday.

6 Saudi soldiers have been killed in the attack, and 9 others were wounded.

The fresh attack came after a tragic Thursday for Saudi Arabia.

Yemen’s Ansarullah movement forces launched a ballistic missile at an army base held by Saudi troops in the Bab el-Mandeb region in the country’s southwestern province of Ta’izz on Thursday, killing and injuring 150 Saudi mercenaries.

The ballistic missile attack has also destroyed 10 Saudi military vehicles.

Yemen has been under massive attacks by a coalition led by the Saudi regime for nearly 21 months.

Since March 2015, the kingdom and some of its Arab allies have been launching deadly airstrikes against the Houthi Ansarullah movement in an attempt to restore power to the fugitive former President Abd Rabbuh Mansour Hadi, a close ally of Riyadh.

Nearly 10,000 Yemenis, including 4,000 women and children, have lost their lives in the deadly military campaign.