Mir Hossein Mousavi, the politician at the centre of Iran's opposition movement, has encouraged his followers to continue their protests over the presidential election.
In a statement on his website on Sunday, Mousavi said that people had the right to protest against "lies and fraud", but urged them to show restraint as they take to the streets.

Mahmoud Ahmadinejad, the conservative incumbent president, was declared the winner of the June 12 election with a landslide victory, but Mousavi and another reformist candidate have complained that it was rigged.

Mousavi's statement appeared on the website of his Kalameh newspaper as reports emerged of police attacking a vigil by about 100 people outside the offices of the United Nations in Tehran.
The capital had been largely calm until then after state television reported that at  least 13 people had been killed as police and pro-government militia clashed with protesters the previous day."I as one of the mourners invite my dear people to self-restraint. The nation belongs to you," Mousavi said.

"The revolution is your legacy. To protest against lies and fraud is your right. Be hopeful that you will get your right and do not allow others who want to provoke your anger ... to prevail."