The United Nations Security Council says sanctions against Iran will remain until a final deal is reached.
"As our negotiators seek a comprehensive deal, we wish them the best. Yet until there is a deal, this council must maintain pressure on Iran," U.S. Deputy Permanent Representative to the United Nations Rosemary DiCarlo said.
Iran allegedly agreed to discontinue enriching uranium for the next six months in exchange for no new sanctions during that time.
But immediately after signing the accord, Iranian President Hassan Rouhani said dismantling the country's nuclear facilities "crossed a red line" and the agreement ensured the Islamic Republic's right to enrich uranium.
"No matter what interpretations are given, Iran's right to enrichment has been recognized in the text of the agreement," Rouhani said, declaring "...that Iran's enrichment activity will continue as before."
Israeli Prime Minister Benjamin Netanyahu has repeatedly warned against easing economic sanctions against Iran. He has said only international pressure will get Iran to fully dismantle its nuclear weapons program.
The U.S. Senate is pushing for more sanctions if Iran violates the terms of the six-month agreement.