CHRONOLOGY: Events in Lebanon since Hariri's killing

(Reuters) - At least three people were killed in an explosion which damaged a U.S. diplomatic car in Beirut on Tuesday and wounded a passenger, security sources said.

Here is a chronology of some of the main events in Lebanon since former Prime Minister Rafik al-Hariri was killed, along with 22 other people, on February 14, 2005.

February 28, 2005 - Pro-Syrian Prime Minister Omar Karami resigns.

March 5 - Syrian President Bashar al-Assad tells his parliament Syrian troops will start phased pullout from Lebanon.

April 26 - Last Syrian soldiers leave Lebanon.

June 2 - Samir Kassir, journalist opposed to Syria's role in Lebanon, is killed in Beirut by a bomb in his car.

June 16 - U.N. investigation into Hariri's killing starts.

June 19 - Lebanese parliamentary elections end in victory for anti-Syrian alliance led by Hariri's son Saad al-Hariri.

June 21 - Former Communist Party leader and critic of Syria George Hawi is killed in Beirut by a bomb in his car.

October 20 - U.N. investigators, in report to U.N. Security Council, say high-ranking Syrian officials and their Lebanese allies were involved in Hariri's killing. Syria denies it.

December 12 - Gebran Tueni, anti-Syrian member of parliament and Lebanese newspaper magnate, is killed by a car bomb near Beirut.

July 12, 2006 - Hezbollah captures two Israeli soldiers in cross-border raid, setting off 34-day war in which about 1,200 Lebanese are killed.

November 11 - Five pro-Syrian Shi'ite Muslim ministers from Hezbollah and its ally, the Amal movement, resign after collapse of all-party talks on their demand for more say in government.

November 21 - Industry Minister Pierre Gemayel is killed by gunmen. U.N. Security Council approves plans for tribunal to try suspects in assassination of Hariri and subsequent attacks.

December 1 - Hezbollah, Amal and supporters of Christian leader Michel Aoun camp outside Prime Minister Fouad Siniora's office in central Beirut in open-ended campaign to topple government.

January 25, 2007 - Aid conference in Paris pledges more than $7.6 billion to help Lebanon recover from the war.