The Yemeni army fired the missile at a garrison of the Saudi-led troops in Taiz Province in southwestern Yemen, the Arabic-language al-Ahed news website reported.

According to a Yemeni military source, those killed in the attack are nationals from Saudi Arabia and a number of other countries.

The Yemeni forces had previously targeted Saudi positions with ballistic missiles named “Qaher-1”, which has a range of 500 kilometers.

It was first fired by the Yemeni Army at the Khaled bin Abdulaziz military base in Saudi Arabia’s southwestern city of Khamis Mushait, located 884 kilometers (549 miles) southwest of the capital, Riyadh.

Yemeni Ansarullah movement’s technicians have produced the new surface-to-surface ballistic missile after making major alterations to the Russian-made S-75 Dvina surface-to-air missile system.

The military innovation came after Ansarullah forces realized that the S-75 missiles cannot be efficiently utilized for targeting the advanced military warplanes belonging to a Saudi-led military coalition, which have been pounding Yemen for months.

Since March 2015, Saudi Arabia 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.

According to media reports, more than 8000 Yemenis, most of them civilians, have been killed in the Saudi-led aggression so far.