A coalition of Persian Gulf Arab states led by Saudi Arabia continued to bomb Yemen late Saturday and early Sunday.
The airstrikes follow recent developments where Ansarullah, also called Houthi, fighters have gained much ground in the country.
Saudi led airstrikes hit the airport of the city of Hadida, destroying the runway.
Hadida is Yemen’s second most important port city after Aden.
Meanwhile, Saudi King Salman has vowed to continue the airstrikes until pre-defined objectives, that is Ansarullah’s surrender, are achieved.
Former Yemeni president Ali Abdullah Saleh called for a swift end to the bombings.
Al-Arabiya reported that numerous Ansarullah arsenals in Sa’da province were bombed.
It also reported that Saleh’s son was injured during the raids.
Saudi Brigadier-General Ahmed bin Hasan Asiri said on Sunday the airstrikes had destroyed any jet fighter remaining in the Arab world's poorest country, Al Jazeera reported.
The campaign, now entering its fourth day on Sunday, continued to target Scud missiles in Yemen, leaving most of their launching pads "devastated," according to remarks carried by the state-run Saudi Press Agency.
There was no immediate comment from the Houthis, who began their offensive in September, seizing the capital, Sanaa, and later holding embattled President Abd-Rabbo Mansour Hadi under house arrest.
Dozens of civilians have been killed in the Saudi-led coalition's air assault, and ground fighting has been reported between Houthi fighters and armed men supporting Hadi in the southern port city of Aden.