Iranian President Hassan Rouhani said on Tuesday Saudi Arabia cannot hush up execution of a Shiite Muslim cleric Nimr al Nimr by cutting relations with Tehran.
Saudi Arabia, Bahrain and Sudan cut diplomatic ties with Iran and the United Arab Emirates downgraded its relation on Monday.
The decision came after escalation of tensions between Saudi Arabia and Iran because of the execution of Sheikh Nimr al Nimr and 46 others.
The Saudi government on Saturday executed Sheikh Nimr al Nimr and 46 others after they were convicted of terror-related offences.
Nimr and three other Shiites were accused of involvement in shootings and petrol bomb attacks that killed several police officers during anti-government protests during the “Arab Spring.”
IRNA, state news agency, quoted Rouhani as saying, "We believe diplomacy and negotiations are the best way to solve problems between countries... Regional countries can save the region of terrorism danger through unity."
The Iranian government called to reduce tensions and claimed foreign powers for organizing the attack.
Rouhani defined the embassy attackers as extremists.
Iranian government's spokesman described the incident "suspicious" and " in the interest of Saudi Arabia's policies."
"A few people - with whom it's not clear which country's interests they are serving - took advantage of people's feelings," ILNA news agency quoted Mohammad Bagher Nobakht, spokesperson of the Government, as saying on Tuesday.
Additionally, Iran celebrates the anniversary of the 1979 seizure of the US Embassy in the country every year and calls the incident as the Second Revolution.
The 52 US diplomats and citizens were held hostage for 444 days.
Since that time, Iranians have continued their attacks over a number of embassies in Tehran such as Kuwait in 1987, Saudi Arabia in 1988, Denmark in 2006 and Great Britain in 2011.