Qatar’s foreign minister Mohammed bin Abdulrahman Al Thani told Al Jazeera he did not think the Saudi threat – reportedly made in a letter to France – was serious.
The threats, Mohammed bin Abdulrahman Al Thani said , violates "international law and all the international norms".
"The purchase of any military equipment is a sovereign decision that no country has anything to do with,"Qatar’s foreign minister added.
"This letter has no legal basis to justify any action," Al Thani noted.
"It's unfortunate that they see this as destabilisation because Qatar does not represent a threat to Saudi," he said.
The Saudi monarch, who asked that France increase its pressure on Qatar, said he was worried about the consequences of Doha's acquisition of the mobile surface-to-air missile system, which he said threatened Saudi security interests.
In a letter addressed to French President Emmanuel Macron, Saudi King Salman bin Abdulaziz expressed his "profound concern" with talks under way between Moscow and Doha for the sale of the advanced anti-aircraft weapon system, French daily Le Monde reported on Friday.
Saudi Arabia, the UAE, Egypt and Bahrain cut diplomatic and trade links with Qatar last June, accusing Doha of “supporting terrorism”, while Qatar denies the accusations.
