BBC News Online charts the latest developments in the Iraq conflict.
[All times GMT and approximate]
Saturday, 29 March
1912: Big explosions hit central Baghdad.
1857: British intelligence sources say Iraq has replaced the commander of air defence forces after Iraqi surface-to-air missiles, aimed at Western warplanes, had missed and fallen back on the Iraqi capital.
1600: Iraqi Vice-President Taha Yassin Ramadan says suicide attacks against coalition troops will become "routine military policy".
1555: Iraq says an army officer carried out the suicide bombing that killed four US soldiers near Najaf.
1445: Four American soldiers now known to have died in apparent suicide bombing near Najaf.
1240: US Central Command denies that there is a pause in military operations against Iraq.
1210: The bodies of the first British servicemen to die during the war are brought back to England.
1205: US marines say they have found large amounts of ammunition and chemical warfare protection equipment during a search of an Iraqi military complex near Nasiriya.
1200: Baghdad comes under more heavy bombardment from coalition forces.
1020: Iraq's Information Minister Mohammed Saeed al-Sahaf accuses US-led forces of killing 140 civilians over the past 24 hours; denies allegations that Iraqi soldiers are disguising themselves as civilians.
0930: A suicide bomber has killed five
Americans soldiers in an attack near the city of Najaf in central Iraq, US military officials say.
0815: UK military officials say they have no evidence to back up reports that British soldiers were seized in Basra.
0750: UK defence officials are investigating reports that four or five British soldiers were kidnapped in Basra overnight.
0730: US military officials refuse to comment on reports that an operational pause has been ordered to allow forward American units regroup and resupply.
0530: US forces launch new artillery barrages on the southern town of Nasiriya, as Iraqi resistance continues, in spite of heavy US attacks including air strikes and the use of helicopter gunships.
0455: Reuters news agency reports unnamed US military officers suggesting there will be a four-to-six day pause in the advance on Baghdad. Pentagon and US Central Command in Qatar refuse to comment on the reports.
0400: Coalition warplanes begin fresh wave of bombing in Baghdad, with loud explosions heard on the outskirts, reports say.
0200: The US warns terror attacks are planned on US interests in Yemen and
advises American citizens to consider leaving the country, reports say.
0140: US jets have destroyed a building in Basra housing a meeting of 200 pro-Saddam paramilitaries, coalition officials reveal.
0135: Iraqi information ministry hit by Tomahawk cruise missiles, US spokesman at Central Command says.
0045: The Australian Government announces A$83m (£32m) worth of aid to UN appeal for Iraq.
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