1221 GMT April 20, 2019
Troops fired ballistic missiles and artillery shells at Saudi mercenaries in the Najran region, Yemen’s Al-Masirah television network reported, according to Press TV.
The Hammad and Akefah military bases were hit by the projectiles, including a Zalzal-1 rocket, with more missiles fired at the gathering of Saudi mercenaries in the nearby Jizan region, it said.
Yemen's tribal forces in the southern province of Shabwa carried out their own retaliatory attacks against the UAE and Saudi mercenaries, killing at least 10 of them.
The retaliation reportedly came after helicopters flown by the UAE attacked the impoverished country’s southwest, killing seven civilians.
The Saudi kingdom has enlisted the UAE as its closest ally in the invasion which began in March 2015 to restore a former government after it resigned and fled to Riyadh.
The war has claimed thousands since its onset and placed Yemen very close to the edge of famine.
Last year, the Saudi-backed former officials and Yemen’s popular Houthi Ansarullah movement hammered out a cease-fire agreement in Sweden.
The deal has mandated a truce in Yemen’s western Hodeida Province, whose main port receives the majority of vital aid sent for the country.