Referring to Iran as "the number one terrorist state", the US president said the Middle Eastern country supplies money and weapons to terrorist groups. Last week Riyadh, along with other Arab governments, severed ties with Qatar, citing its support for Iran as one of the main reasons for the move.
Iran's Zarif says Tehran has intelligence that Riyadh supports terrorist groups operating on the eastern side of Iran.
"On the western side, the same type of activity is being undertaken, again abusing the diplomatic hospitality of our other neighbour", he said, without elaborating.
Two days later, the suicide bombings and shootings in Tehran killed 17 people.
"This is a fire that [Western powers] themselves ignited and now has backfired on them", he told a gathering of senior officials in Tehran at a ceremony to mark the anniversary of the death of revolutionary leader Ayatollah Ruhollah Khomeini in 1989. Iran repeated accusations that Saudi Arabia funds Islamist militants, including Islamic State.
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Be proactive - Use the "Flag as Inappropriate" link at the upper right corner of each comment to let us know of abusive posts. A further audit of the six individuals' desk computers revealed that victor had e-mail contact with the News Outlet.
"America is a terrorist country and backs terrorism. therefore, we can not normalize ties with such country", he said.
Iran's intelligence ministry said the attackers were Iranians who had joined ISIS in Iraq and Syria and returned home to carry out the attack.
In one of his latest tweets on Monday, the Supreme leader claimed that the "U.S. president accuses Iran of terrorism, while terrorism in this region has American roots".
He further underscored commitment of the European countries to the implementation of the nuclear deal signed between Iran and the Group 5+1 (the US, Russia, China, France and Britain plus Germany) in July 2015.
"Some of the problems with the USA are essentially unresolvable as the US's problem with us has nothing to do with nuclear energy or human rights, their problem is with the principle of the Islamic Republic", added the Leader. On Friday, however, he turned his wrath for the attacks on the United States and Saudi Arabia.