"The European capitals, including Berlin, have been passive onlookers," Foreign Ministry spokesman Saeed Khatibzadeh told reporters.
“We therefore expect all parties, when they arrive in Vienna, to know that they have no choice but to adhere to their obligations under the nuclear deal,” he said during his weekly news conference.
“They must give their clear assurance to the Islamic Republic that this time, no party will violate the nuclear deal,” he continued.
The deal, known as the JCPOA, was concluded with the US, UK, China, Russia, France and Germany; it offered Iran relief from sanctions in exchange for curbs on its nuclear program, while also placing it under UN supervision, AFP wrote.
But the US unilaterally pulled out of the deal under Donald Trump and reimposed sanctions, prompting Iran to gradually renege on its commitments a year later in retaliation.
Talks got underway in Vienna in April to revive the deal, but have been suspended since June due to Iran’s presidential election that led to Seyyed Ebrahim Raeisi emerging victorious.
Iran said last week it expects talks to resume soon.
Khatibzadeh said German Chancellor “Angela Merkel and the European countries know that without Europe’s inaction, Trump would not have dared to withdraw from all the agreements or to violate the nuclear deal”.
During a visit to Israel, Merkel on Sunday called on Iran to immediately return to the talks.
“The message to Iran is unequivocal: Return to the negotiating table immediately,” she said.
“There is no new text or deal being negotiated. It is simply a matter of technical talks to ensure the full implementation of the nuclear deal by all parties,” Khatibzadeh told reporters.
Elsewhere in his remarks, the spokesman hailed Iraq’s “timely” parliamentary election as an indication that the country is “on the right path of democracy”.
“What happened in Iraq yesterday is the continuation of the process of democracy in that country,” he said.
“We welcome the successful holding of elections in Iraq. They were held at the right time, and we think the country is on the right path of democracy,” Khatibzadeh added, according to Press TV.
The Iraqi people voted on Sunday to decide the 329 members of the Council of Representatives that will elect the president and confirm the prime minister.
The vote was originally scheduled to take place next year but was brought forward under a new law designed to help independent candidates, as a response to widespread anti-government protests in 2019.
The electoral commission said the initial turnout was 41%, lower than the total turnout in the last election in 2018, which was 44.5%.
During his Monday press conference, Khatibzadeh also confirmed that the fourth round of rapprochement talks between Tehran and Riyadh took place in Iraq last month.
“Four rounds of talks with Saudi Arabia have taken place in Baghdad, and the last round was when we were in New York” to attend the 76th Session of the UN General Assembly, he said.
Early this month, Saudi Foreign Minister Faisal bin Farhan Al Saud announced that “the fourth round of talks took place on September 21,” but did not disclose where it took place.
Asked to provide details about the talks, Khatibzadeh said Tehran and Riyadh had agreed to avoid discussing details in public, but said the two sides have continued to be in contact without interruption.
He added that the talks have focused mainly on bilateral and regional issues, in particular issues concerning the Persian Gulf and the Yemen crisis.
Saudi Arabia severed diplomatic relations with Iran in January 2016 after tensions soared between the two regional powers over a host of issues. Since then, Riyadh has engaged in a provocative approach toward Tehran and strongly supported the United States’ “maximum pressure” campaign on the Islamic Republic.
The Baghdad talks for Tehran-Riyadh rapprochement were launched under Iran’s former President Hassan Rouhani, and have continued under President Ebrahim Raeisi, who assumed office in August.