Key events involving Iran since the June 12 presidential election:
Friday, June 12
- More than 46 million eligible voters invited to choose between four candidates, with incumbent Mahmoud Ahmadinejad and Iran's last prime minister Mir Hossein Mousavi the favourites. Soon after the voting ended Mousavi announces he has won the election.
Saturday, June 13
- The interior ministry announces Ahmadinejad has won with almost 63 percent of the vote against 34 percent for Mousavi. Turnout reported at 85 percent.
- Ahmadinejad calls the result "a great victory" and says the vote was "completely free." Mousavi complains of "numerous and blatant irregularities."
- Mousavi supporters take to the streets of Tehran, clashing with baton-wielding police in the worst violence since widespread student protests in 1999.
- Some Internet and mobile phone services disrupted, leading to accusations of media censorship.
Sunday, June 14
- Police say they rounded up about 170 people during post-election violence on Saturday. Human rights group Amnesty International calls for an investigation into alleged police brutality.
- Ahmadinejad addresses a huge victory rally in Tehran.
- Supreme leader Ayatollah Ali Khamenei says he has asked the Guardians Council, which supervises elections, to probe allegations of rigging and calls on Mousavi to pursue any complaints via legal and peaceful means.
- Leading Western nations express concern about the election outcome.
Monday, June 15
- Mousavi appears in public for the first time since the election at a mass rally in Tehran that gathers hundreds of thousands of people.
- The Guardians Council says it will investigate complaints of irregularities lodged by Mousavi as well as Mohsen Rezai and Mehdi Karroubi, the other two presidential candidates.
- Relatives of people arrested in the protests demonstrate outside a Tehran court.
- UN chief Ban Ki-moon calls for the will of the Iranian people to be "fully respected."
Tuesday, June 16
- State radio says at least seven people were killed in Monday's violence.
- Supreme leader Ayatollah Ali Khamenei says there should be a partial recount if required.
- State television says the rival camps staged more mass rallies in the capital.
- Iran announces restrictions on foreign media, including banning them from covering "unauthorised" rallies.
- Organisers of the pro-regime rally blamed "enemies, particularly the US, Britain, and Israel" for "interfering in Iran's internal affairs, plotting against the government and giving media support to enemy groups, rioters and social and political hooligans."
- Ahmadinejad attends an international security conference in Russia, where he says "the age of empires has ended."
- US President Barack Obama says he has "deep concerns" over the election but will not meddle in Iranian affairs, and the White House says Obama remains "committed to direct engagement" with Iran, despite the violence.
- The foreign ministry summons EU envoys to protest at reaction to the vote.
- Unrest reported in other cities including Mashhad, Isfahan and Shiraz.
Wednesday, June 17
- Mousavi repeats call for new election, while urging supporters to hold a march and a day of mourning on Thursday for protesters slain in clashes.
- Two more prominent supporters of Mousavi are arrested.
- Foreign ministry accuses some foreign media of becoming the "mouthpiece of rioters."
- Revolutionary Guards threaten Iran's online media with legal action if their sites publish material that creates "tension."
- Tens of thousands of Mousavi supporters defy a ban on opposition gatherings and take part in a "silent" protest rally, marching through central Tehran. State television broadcast brief footage of the rally.
- A dozen Iranian journalists and bloggers have been arrested and others are in hiding after authorities took steps to restrict the media, Reporters Without Borders (RSF) said.
Thursday, June 18
- Iran's Mehr news agency said supreme leader Ayatollah Ali Khamenei will lead Friday prayers in Tehran in the presence of the Basij volunteer Islamic militia.
- The three defeated candidates in the election have cited 646 violations in the June 12 poll, electoral watchdog the Guardians Council said.
- Iran's top clerical body, the Assembly of Experts, hailed the mass turnout in the June 12 presidential election but stayed silent on the disputed results.