The infiltrators fled the scene after the A.U.-U.N. police unit returned fire, the mission said.

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They told a BBC correspondent in the city that they were searching for possible infiltrators.

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But nobody, not even the spooks, believes wiretaps and infiltrators alone are enough to defeat Islamist extremism.

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Its forces recently released some 41 Iranians arrested in Iraq as suspected infiltrators.

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The eyewitness, who wanted to remain anonymous, told BBC Newsnight that the three students in Islamic dress were arrested as suspected infiltrators.

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All Microsoft needs to do to understand the hurt a group of infiltrators can inflict is look to the recent hardships of its chief competitor, Sony.

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A. Chandrasiri, blames Tiger infiltrators for the killings.

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Rather, they estimate that only one in four of the attackers has links to the insurgents in one way or another, with only one in ten attacks being the work of infiltrators.

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Meanwhile, India accuses Pakistan of continuing to send and support infiltrators who cross the border to commit terrorist attacks in Indian Kashmir, despite pledges by Pakistan's president, General Pervez Musharraf, that this would be stopped.

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He went so far as to claim that some elements in the Brotherhood were seeking to drag Jordan into a situation similar to that in Nahr al-Bared, a Palestinian refugee camp in north Lebanon where the Lebanese army has been battling with heavily armed Islamist infiltrators for more than two months.

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