Iran's official IRNA news agency is reporting around 50 hard-line students and activists have staged a rally, calling on the parliament to reject the landmark nuclear deal reached with world powers last month.
Today's report said the protesters carried signs outside the parliament building decrying the agreement as an "injustice to our nation."
Lawmaker Zohre Tayebzadeh addressed the crowds, claiming the deal crosses "red lines" by allowing the US to supervise Iran's uranium enrichment program.
Iran's parliament and the Supreme National Security Council, the country's highest security decision-making body, are to consider the agreement in the coming days.