Supporters of the exiled opposition group the National Council of Resistance of Iran rallied outside the UN Headquarters in New York on Wednesday to protest the speech of President Masoud Pezeshkian before the General Assembly.
There appeared to be scores or hundreds of attendees standing behind a banner reading "No to Khamenei's President".
The Mujahideen-e-Khalq (MEK) group, which is banned in Iran, is the largest component of the NCRI whose leaders are based in Paris.
A leftist-Islamist group, the MEK carried out attacks against the shah's government and US targets in the 1970s but fell out with other factions during the 1979 revolution which toppled the monarchy and has been at war with Tehran ever since.