From maan news:

Bethlehem - Ma'an - Ayatollah Ali Khamenei said on Wednesday that Iran would "stand by" Gaza's Hamas leaders, according to the Islamic republic's state-run television station. 

Khamenei told viewers that de facto Prime Minister Ismail Haniyeh would "never be left alone," and that the leader is a "mujahid," or holy warrior. 

The agency also quoted the Iranian spiritual leader that Israel's "Zionist regime is moving toward weakness, destruction and defeat," while Palestinians would soon see "that great day" when Israel is defeated. 

Khamenei spoke at a prayer service marking 'Eid Al-Fitr, which celebrates the end of the Islamic holy month of Ramadan. 

Israel's ambassador to the United States issued a statement saying that "not since World War II has the world faced such a dangerous and significant threat."

"The fanatical Iranian regime, a sponsor of global terror, is threatening the elimination of another state and is striving to achieve a nuclear weapon," he said. 

The ambassador also insisted that "this should be a moment of truth for the world to take immediate action to prevent this regime from pursuing the development of military nuclear capabilities."

Himself marking the Jewish new year, Rosh Hoshana, Ambassador Meridor added that "Iran presents each and everyone with a question: 'What more can I do in the coming year to prevent this nightmare from coming true?'" he said. 

Iran does not recognize the state of Israel, which officials have called a "cancerous tumor." Iran supports many Palestinian resistance movements, including Hamas.