Daniel Boettcher reports on the latest developments

The incident came as several thousand people took part in an anti-American rally following Thursday's US missile strike on a factory in the city.

The Sudanese authorities say the factory destroyed in the raid was producing pharmaceuticals and not chemical weapons as asserted by the Americans.

Correspondent Cathy Jenkins: "The violence lasted about 30 minutes"

Correspondent Cathy Jenkins in Khartoum says several hundred people broke off from the main protest and threw stones at the three-storey building, cracking some windows.

One person climbed up the flag pole cut down the Union Flag.

Six embassy staff were inside the building at the time. They said riot police arrived only after the crowd began to disperse.

The British Prime Minister, Tony Blair, had spoken out strongly in support of the American raids on Thursday.

Security Council to meet

The UN Security Council is to meet on Monday to discuss Sudan's request for an investigation into the missile strike.

The factory was badly damaged

Sudan has invited an international group - including Americans - to inspect the factory and says it will respect the findings.

Sudanese television said one person was killed in the Khartoum factory attack while 20 were killed in the simultaneous strike in Afghanistan.

Pink placard

The correspondent in Khartoum says Saturday's rally in Khartoum was initially not without humour.

Two men carried a pink placard with the words: "Monica, not Sudan," saying that they had followed developments in the Monica Lewinsky affair closely.

But, the corresponent says, as the later incident at the British embassy showed, the American raid has served to harden feelings against the US and its allies.

Pakistan urges US to end attacks

Meanwhile, Pakistan has urged the US not to launch another attack on alleged terrorist bases in Afghanistan but to explore other options instead.

Correspondent Richard Galpin: Pakistan says US should consider other options

Pakistan's Foreign Minister, Sartaj Aziz, said he did not believe further missile strikes would achieve the stated American objective of destroying suspected terrorist training camps - instead they were likely to lead to retaliation.

Mr Aziz said terrorism should be dealt with through legal and diplomatic approaches.

Osama bin Laden: survived attack

Both targets were linked by the Americans to the exiled Saudi dissident, Osama bin Laden - the man they say was behind the bombing of the American embassies in Kenya and Tanzania just over two weeks ago.

Saudi-based journalists say Osama bin Laden is assuming the status of a hero for many Muslims and there are fears about reprisals he has threatened.

The first independent reports from Afghanistan say that several of the camps targeted by American missiles have been completely disrupted.

And the United Nations has announced the death of one of its officials who was shot in Kabul by unidentified gunmen in the wake of the American attack.

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