Two Saudi forces and two of their mercenaries have been killed during a retaliatory attack by Yemeni forces against the kingdom’s soil.
The attack hit a military base in Saudi Arabia’s southern border province of Najran on Thursday, Yemen’s al-Masirah television reported.
Yemeni forces also shelled the installations of Saudi forces near another military base in Najran.
They also targeted positions of pro-Saudi militants with missiles in Yemen’s Jawf Province, killing eight of them and wounding several others.
Saudi Arabia has been leading a deadly military campaign against Yemen since March 2015. The kingdom has also imposed an aerial and naval blockade on its southern neighbor.
Britain and the US have provided huge amounts of arms and military training to the Saudi forces.
The Saudi aggression, which allegedly seeks to restore Yemen's former government to power, has killed over 12,000 Yemenis according to the latest tallies.
Last month, the UN aid chief estimated that 19 million Yemenis were in pressing need of humanitarian assistance.
The UN humanitarian coordinator in Yemen has also warned of a deepening food crisis in the country, saying almost a quarter of the country’s 27 million population is facing starvation.