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Eight British men suspected of being involved in terrorist activity have been arrested in a series of raids across the south of England.

More than half a ton of ammonium nitrate fertiliser was also seized from a self storage unit in west London.

Raids by five forces, involving 700 officers, were carried out on 24 premises early on Tuesday morning.

The men arrested were aged between 17 and 32 and are believed to be of Pakistani descent.

Head of Scotland Yard's terrorist branch Peter Clarke said warrants were issued under the Terrorism Act 2000.

The raids were coordinated by the Met Police's terror branch
The men, all British citizens, were arrested on suspicion of being involved in the commission, preparation or instigation of acts of terrorism.
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