Saudi Arabia slammed longtime rival Iran on Sunday following western missile strikes on Syria, an ally of Tehran, last week. 

“We renew our strong condemnation of terrorist acts carried out by Iran in the Arab region, and we reject its blatant interference in the internal affairs of Arab countries,” King Salman said at a summit of Arab leaders, without referencing Friday’s missile strikes on Syria, according to Reuters.

{mosads}Riyadh expressed its support for the strikes on Damascus in a statement on Saturday. 

“We fully support military operations against military targets in Syria,” the Saudi Foreign Ministry said. “The military operation was necessary to protect civilians and stop chemical use.”

Saudi Arabia and Iran have long considered each other to be regional enemies, and have taken part in proxy conflicts, such as in Syria. 

The U.S., France and the U.K. launched over 100 missiles at three targets in Syria following the deadly apparent chemical attack on Syrian civilians. 

The attack was aimed at taking out Syria’s chemical weapons facilities, though the strikes were limited and reports have already suggested they may have had a minimal impact on Syria’s capabilities.

Assad has denied responsibility in the attack, but the White House said the administration has “high confidence” that Damascus was behind the attack.