BBC News Online charts the latest developments in the Iraq conflict.
[All times GMT and approximate]
Saturday, 5 April
2329: Members of the Fedayeen militia seen patrolling streets of Baghdad and staffing machine-gun positions.
2000: Massive explosions heard in the centre of Baghdad.
1945: Iraqi state TV shows pictures of Saddam Hussein with sons and top military commanders.
1723: A bomb explodes in the centre of Baghdad, next to the Palestine Hotel where many journalists covering the war are based and where briefings by the Iraqi information ministry are held.
1610: Iraqi Republican Guard units around Baghdad have been crippled as an organised force, General Moseley says.
1607: US combat aircraft begin 24-hour-a-day patrols over Baghdad to provide close air support for US ground troops, commander of the US-led air campaign Lieutenant-General Michael Moseley says.
1540: In an interview with the Arabic television channel al-Jazeera, Iraqi Information Minister Mohammed Saeed al-Sahaf denies reports of US raids into Baghdad. He says pictures of the fighting being shown are not shots of the city's outskirts, but of the district near the airport.
1530: The first food aid to northern Iraq - about 1,000 tonnes of wheat flour - is unloaded at a United Nations' office in the town of Dohuk, the BBC's Nick Thorpe reports.
1527: Military sources at the US-led coalition headquarters in Qatar confirm that their aircraft struck the residence of the Iraqi chief commander in the south, Ali Hassan al-Majid, also known as "Chemical Ali", in Basra early on Saturday.
1506: In his weekly radio address, US President George W. Bush says American troops "will not stop until Iraq is free". President Bush says the Iraq war is part of a "great and just cause".
1315: Iraqi Information Minister Mohammed Saeed al-Sahaf reads a statement on Iraqi state television which he says is from President Saddam Hussein. The statement urges the Iraqi people to "step up attacks on the invading forces".
1310: The BBC's correspondents in Baghdad say they have not seen any presence of US troops in the city centre.
1215: US Central Command in Qatar declares Baghdad airport "secure" and being reinforced to bring it into operational use. It says the battle for Baghdad is "far from over", despite recent US raids in the city.
1110: Iraq's claim to have retaken Baghdad's main airport is "groundless", US Central Command says.
1105: Republican Guard suffered "comprehensive defeats and heavy losses" in fighting in Baghdad, UK prime minister's spokesman says.
1100: US Central Command says its incursions into urban Baghdad are "rolling patrols" to maintain a presence in Baghdad - but not necessarily to occupy territory.
1005: Three Iraqi diplomats expelled from the Turkish capital, Ankara, for "carrying out duties incompatible with their status".
1000: Western correspondents attached to the US mechanised infantry division at Baghdad airport say heavy fighting has been taking place as units move against Iraqi defenders on the highways leading to south-west Baghdad.
0945: British forces in southern Iraq discover the remains of hundreds of bodies, some in military uniform, in what is being described as a makeshift morgue.
0930: Iraqi information minister denies that US troops have entered central Baghdad and says American forces have been expelled from the city's main airport.
0915: Evidence of battle on southern fringes of Baghdad - including several burnt-out Iraqi personnel carriers - but no sign of US forces, reliable sources tell BBC.
0845: A "significant number" of US troops are entering Baghdad and they are not just on a brief patrol, US Central Command
forward headquarters in Qatar says.
0830: BBC correspondent says Iraqi artillery being moved into position within Baghdad.
0820: US soldiers reported injured during fighting in Baghdad.
0800: US forces say they have captured the headquarters of the Republican Guard's Medina Division, south of
0710: US military says "substantial forces" moving into the centre of Baghdad.
0700: Reports of a series of very loud explosions in the south-western outskirts of Baghdad, which was subjected to continuous heavy bombing all night.
0510: Reuters report that a US officer has said that first tests of a white powder found in thousands of boxes near the Iraqi capital indicated it was not a chemical
0430: Up to eight US Abrams tanks begin reconnaissance mission in the southern outskirts of Baghdad, making furthest land advance yet into the capital.
0400: Two US marine pilots have been
killed when their AH-1W Super Cobra attack helicopter crashed
in central Iraq early on Saturday morning, US military said.
0230: A US soldier is charged with the murder of two
officers in a grenade attack at an army camp in Kuwait last month; Sergeant Hasan Akbar also faces 17 counts of attempted murder.
0200: Three large explosions rock
the south-eastern outskirts of Baghdad, a Reuters correspondent said.
0055: US National Security Adviser Condoleezza Rice says that coalition forces and not the UN will play the leading role in a post-war Iraq, at least in the short term.
0030: UK International Development Secretary Clare Short gave her backing to the US organisation set up to oversee humanitarian aid to Iraq in the immediate aftermath of hostilities.
0020: ABC News reporter says seven civilians, including three children, died when US marines fired at two lorries that refused to stop at a checkpoint south of Baghdad.
The movements of those reporting from Baghdad are restricted and their reports are monitored by the Iraqi authorities.
Reporters with the US and British military are restricted in what they can say about precise locations or military plans. Click here for more details.