Hundreds of Iranians staged a protest outside the British embassy on Wednesday against a decision by the European Union to strike Iran's exiled armed opposition from its terror list.
Protesters shouted "Death to America" and "Death to Britain" and "Death to monafeghin," or hypocrites, a term Iran uses to describe the main opposition group in exile, the People's Mujahideen of Iran.
Islamists carried banners saying "No to terrorists" and "Europe be ashamed."
The European Union struck the PMOI from its list of terrorist organizations on Monday - a move that followed a similar legal battle and result in the U.K.
The Luxembourg-based Court of First Instance ruled last month that the E.U. had wrongly frozen the funds of the opposition group and violated its rights by not justifying why it was placed on the list.
Iran has condemned the E.U. decision and accused the European bloc of "encouraging terrorism."
Amid the protesting crowd on Wednesday was a cleric standing on the back of a truck who warned the U.K. "not to become accomplices in a crime since they (the PMOI) do not have popular base in Iran."
"Britain was the first European nation to pave the way for this removal," the cleric said referring to the decision by U.K. lawmakers in June 2008 to remove the group from a list of terror groups.
The cleric also urged Iran to take over the U.K. diplomatic compound in Tehran.
"If the officials do not recover it, then our people will do it as they took over the U.S. embassy (in 1980)," he warned, amid chants from the crowd saying" "the colonialist ambassador should be ousted."