Saudi warplanes have attacked residential areas in Yemens cities of Hudaydah and Saada.
The warplanes launched at least seven airstrikes against the port city of Hudaydah and five raids against Saada on Thursday.
Meanwhile, Saudi aircraft have air-dropped weapons to al-Qaeda terrorists in the Yemeni province of Taizz.
The planes delivered the arms on Habashi Mountain in the southwestern province in the early hours of Thursday, amid incessant airstrikes against the impoverished Arab country.
Earlier, Saudi warplanes reportedly launched over 100 airstrikes against the northwestern province of Saada and the western Hajjah Province and carried out six airstrikes on Saada.
Saudi warplanes have also carried out strikes on various parts of Yemen with the latest raids targeting the provinces of Marib and Dhamar, where dozens of people, mostly women and children, were killed.
Saudi navy warships also fired several rockets on Maydi Hospital in Hajjah.
On the ground, the popular committees backed by Ansarullah fighters and allied army units are marching through the southern provinces. They have liberated al-Masnaah area in Shabwah Province and confiscated their military vehicles.
On Wednesday, Saudi fighter jets bombarded a military airport in the Yemeni province of Lahij in the countrys south. Also on Wednesday, Saudi air raids killed dozens of people elsewhere in the Arab country.
Toward the north, at least nine Saudi citizens, including several army forces, have been killed near the Saudi border city of Nijran over the past two days. They were targeted by rockets fired by Yemeni tribal forces.
Saudi Arabia started its military aggression against Yemen on March 26 - without a UN mandate - in a bid to undermine the Houthi Ansarullah movement and to restore power to fugitive former President Abd Rabbuh Mansour Hadi, who is a staunch ally of Riyadh.
The Saudi military campaign has claimed the lives of over 1,200 people so far and injured several thousand of others. Hundreds of women and children are among the victims, according to the United Nations health agency.