Countries in the region "will never forget the role played by Saudi Arabia in conspiring for, supporting and arming violent terrorists and extremists... such as Al-Qaeda and Daesh (IS) and other similar groups," Iran's foreign ministry said.
It also singled out Saudi support for Iraq's fallen dictator Saddam Hussein in his 1980-1988 war against Iran, its military intervention in Yemen since 2015 and its apparent rapprochement with Israel.
Iran, a bitter regional rival of Saudi Arabia with which diplomatic ties were cut in 2016, was responding to the kingdom's Crown Prince Mohammed bin Salman who yesterday referred to Tehran's "support for terrorism" during a visit to Paris.
The Wahhabist ideology which is historically linked to the Saudi monarchy has inspired the ideology of jihadist groups, and 15 of the 19 plane hijackers in the 9/11 attacks on the United States were Saudi nationals.
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