The Saudi-led coalition backing Yemeni official government puts the Middle Eastern security in jeopardy, Houthi spokesman said Wednesday in reply to coalition spokesman's remarks on the rebel's attack on the Saudi Najran airport.
"The latest attack and next operations are legitimate practice of self-defense," Mohamed Abdul Salam added on Twitter.
"That who has first ignited fire will be burnt thereof, and will only survive it if stops aggression and lifts blockade," he said.
On Tuesday, coalition spokesman said "Houthi militias continue to commit terrorist acts posing real threat for regional and international security, as targeting civilians and civil facilities."
Turki al-Maliki warned Houthi group that "strict deterring means will be used, and coalition leadership will take measures under international law."
Saudi Arabia has been leading a military coalition in Yemen since 26 March 2015, in support of forces loyal to President Hadi to retake areas controlled by Houthi (Ansarullah) group seen as proxy for Iran in the Arab Peninsula country.
Houthis sporadically fire ballistic missiles on Saudi territory "in reply to coalition airstrikes that target Yemeni civilians and infrastructure," while Saudi Arabia accuses Iran of providing Houthis with such missiles.
The conflict has lefttens of thousands killed, hundreds of thousands injured, and 3 million displaced.
Yemen 4-year war hastriggered what the UN calls the world's worst humanitarian crisis, with most of the population in need for a type of humanitarian aid and immediate protection, including 14 million people risking famine and some 1.8 million children suffering malnutrition.