Tehran, June 22 (RHC)-- Iran has condemned the violation of its airspace by a U.S. spy drone, telling the United Nations in a letter that the international community needs to confront Washington's destabilizing actions.

"Iran condemns, in the strongest possible terms, this irresponsible and provocative wrongful act by the United States, which entails its international responsibility,"Majid Takhte Ravanchi, Iran's ambassador to the UN, wrote in a letter addressed to United Nations Secretary General Antonio Guterres and the UN Security Council.

Ravanchi wrote in the letter that Iran had the right to defend its sovereignty according to the world body's Charter.

"While the Islamic Republic of Iran does not seek war, it reserves its inherent right, under Article 51 of the United Nations Charter, to take all appropriate and necessary measures against any hostile act violating its territory, and is determined to vigorously defend its land, sea and air."

He called on the international community to pressure the United States into ending such "unlawful and destabilizing" actions in the Persian Gulf region.

"This is not the first provocative act by the United States against Iran's territorial integrity," he said, reminding the UN that Iran has always protested illegal U.S. maneuvers through Washington's interest section in the embassy of Switzerland in Tehran.