Iran Press/Asia: Mohammad Javad Zarif made the remarks upon arrival in the Bangladeshi capital of Dhaka on Tuesday evening.
Speaking to reporters Zarif said, "If the Europeans do not take action to fulfill their commitments before Thursday, we will have the third step."
He said that President Rouhani will announce the details of Iran's third step to further reduce the nuclear deal - known as JCPOA - commitments soon, Iran Press reported.
Zarif reiterated that taking the third step would not mean the end of the negotiations, saying "As we also stated in the Supreme National Security Council's statement, we will continue the negotiations and whenever the other side returns to fulfilling its obligations, then we also can stop the actions that we have taken under Article 6 of the JCPOA."
Heading a high-ranking politico-economic delegation, Zarif arrived in the Bangladeshi capital of Dhaka to hold high-level talks with officials of the South Asian country.
The top Iranian diplomat is set to depart for Indonesia as the next stop of his several-nation Asian tour he started recently.
On May 8, the anniversary of the US withdrawal from the nuclear deal (JCPOA), Iran announced that it was partially discontinuing its obligations under the JCPOA and urged nuclear deal remaining signatories – China, France, Germany, Russia, and the United Kingdom – to shield Tehran from Washington's sanctions.
Tehran says its countermeasures fit within its rights under paragraphs 26 and 36 of the nuclear deal, and that it will reverse the measures once its demands are met. As a first step, Iran increased its enriched uranium stockpile to a level above the 300 kilograms set by the JCPOA.
In the second step, Tehran began enriching uranium to purity rates beyond the JCPOA-limit of 3.76 percent and it has announced that it may increase the level of uranium enrichment to the pre-JCPOA era to 20% as the third step to reduce its JCPOA-related commitments.101/213
Read more:
JCPOA can't be reviewed: Zarif
Zarif: Iran to reduce more JCPOA commitments if EU fails to take action
US respect for JCPOA is Iran's prerequisite for talks: Zarif