Iran has a transparent foreign policy and has always supported regional security, Minister Zarif said, noting that Iran wants security to reign in neighboring countries, including Saudi Arabia and Qatar.
Two days later, the suicide bombings and shootings in Tehran killed 17 people.
"On the Western side, the same type of activity is being undertaken", Zarif said.
At an Arab Islamic American Summit in Riyadh last month, U.S. President Donald Trump accused Iran of fueling "the fires of sectarian conflict and terror" and called for its worldwide isolation. "We condemn terrorist attacks anywhere they occur and we condemn the killing of the innocent anywhere it occurs", he said.
Following the incident, the so-called Abdullah Azzam Brigades claimed responsibility for the bombings.
He stated that the USA can not be trusted as it is the embodiment of terrorism itself and supports regimes such as Israel which came to be through terrorism and oppression.
Alleged leaker's parents fear Trump will be tough on case
If convicted, victor faces a maximum sentence of 10 years in prison and/or a fine of up to $250,000, according to court documents. Prosecutors said a phone call to her sister expressed Winner's confidence in how to play the court during her bond hearing.
Adel al-Jubeir, Saudi Arabia's foreign minister, denied the accusation.
Press TV reported that a bomber's explosive vest had also been discovered and deactivated in the vicinity of the mausoleum adding that an ambulance belonging to the Welfare Organization of Iran was targeted when terrorists fired 16 bullets at the vehicle at the mausoleum.
He gave no further details, but other officials said that four other alleged members of the gang had been killed in the southern Iranian province of Hormozgan, home to a substantial Arab minority.
"Today, we are witnessing the destructive outcomes of state-sponsored terrorism backed by Saudi Arabia, the United States and some (other) reactionary regional countries in Iraq, Syria, Afghanistan, Yemen and elsewhere, including in some European countries", Jazayeri said as quoted by the Tasnim news agency.
Earlier, Iranian Parliamentary Speaker Ali Larijani accused Washington of being an ally of Islamic State in the region.
He mentioned that victims of terror in Iran include people of different ethnic and religious groups as terrorists have been targeting them as "Iranians" and not as individuals belonging to a certain ethnic or religious group.