At least five Saudi troops have been killed in a Yemeni retaliatory attack following the kingdom’s airstrikes on its impoverished neighbor.

Four Saudi troops were hit by Yemeni snipers in Saudi Arabia’s Alab border area, while another one was killed by Yemeni snipers at a military base in the Asir region.

Riyadh has been involved in more than two years of a devastating campaign against Yemen.

Meanwhile, at least two Yemeni civilians were killed after their car was targeted by Saudi jets in the western province of Maarib.