A look at events following Iran's presidential election:

Friday, June 12
Iranians choose among four candidates in the country's 10th presidential election. State media report incumbent Mahmoud Ahmadinejad won re-election. His main reformist rival, Mir Hossein Mousavi, also claims victory
Saturday, June 13
Official results declare Mr. Ahmadinejad the winner with 63 percent of the vote, compared to 34 percent for Mr. Mousavi.

Mr. Mousavi's supporters denounce the results, alleging major voting fraud. Thousands of protesters take to the streets of Tehran, clashing with police, who use tear gas and batons. 

Images and accounts of the violence are shared through social media services Twitter, Facebook and YouTube.

Sunday, June 14
Mr. Ahmadinejad addresses tens of thousands of his supporters at a victory rally in Tehran's Vali Asr square.

Iran's Supreme Leader Ayatollah Ali Khamenei directs the Guardian Council to investigate claims of voter fraud. Mr. Mousavi wants the council to annul the election results.

Monday, June 15
Hundreds of thousands of opposition supporters march in Tehran. Mr. Mousavi addresses the crowd.

State news reports later confirm seven demonstrators are killed during a clash with pro-government militia.

Tuesday, June 16
The Guardian Council says it will order a recount of votes from some of the sites where the opposition claimed irregularities.

Thousands of Mr. Ahmadinejad's supporters rallyl in central Tehran while he attends a regional summit in Russia. Tens of thousands of Mousavi supporters march in northern Tehran. 

Iran's government bans foreign journalists from leaving their offices to cover and film opposition protests.

Wednesday, June 17
Tens of thousands of opposition supporters hold another demonstration in Tehran. Many march in silence to emphasize the peaceful theme of the demonstration.

Iran's foreign ministry complains about what it calls "iinterventionist" statements from the United States. The White House denies it is interfereing in Iranian politics.

Several members of Iran's national football team wear green wristbands during a World Cup qualifying match in South Korea, televised in Iran. Green was Mr. Mousavi's campaign color and is used as a symbol of solidarity by opposition protesters.

Thursday, June 18
Hundreds of thousands of supporters of Mr. Mousavi heed his call to gather in Tehran and mourn those who have died in post-election violence. At Mr. Mousavi's direction, they wear black, the traditional color of mourning, rather than his campaign color, green.

The Guardian Council invites the three defeated presidential candidates: Mr. Mousavi, Mohsen Rezaei and Mehdi Karroubi, to a Saturday meeting to discuss their complaints about the election.

Friday, June 19
Ayatollah Kahamenei delivers a speech during Friday prayers warning protesters to stop demonstrating in the streets. He calls Mr. Ahmadinejad the definitive winner and denies opposition allegations that the vote was rigged.

Some information for this report was provided by AFP, AP and Reuters.