“It is our historical responsibility to continue our protests and not to abandon our efforts to preserve the nation’s rights,” he said, two days after Iran’s top legislative body confirmed Ahmadinejad’s election victory.

Mousavi, who has repeatedly said the June 12 vote was rigged, said he would join a planned association of leading figures which would follow up people’s rights and “ignored votes” in the election.

Its demands would include “halting security and military confrontation with the election, returning the country to a natural political atmosphere, reforming the election law to prevent vote rigging, securing freedom of holding rallies and freedom of press,” the statement said.