Scotland Yard said that six people were arrested by detectives this morning from Operation Weeting at addresses in London, Oxfordshire, Hampshire and Hertfordshire.
Officers from Operation Weeting - the probe into cases of voicemail interception by the newspapers - said that five men and one woman were arrested on suspicion of conspiracy to pervert the course of justice.
All six were arrested between 5am and 7am today and are being interviewed at police stations. Police confirmed that they include a 43-year-old woman arrested at home in Oxfordshire; a 49-year-old man also arrested in Oxfordshire; a 39-year-old man held in Hampshire; a 46-year-old man arrested in West London; a 38-year-old man arrested in Hertfordshire, and a 48-year-old man arrested at a business address in East London.
Scotland Yard added in a statement: "A number of addresses connected to the arrests are being searched. Today's operation follows consultation with the Crown Prosecution Service."
This forms the biggest swoop so far by Operation Weeting, which has arrested 23 people to date, including former News of the World editors Andy Coulson and Rebekah Brooks. No-one has been charged with any offence.
Yesterday, the Hacked Off campaign group called on authorities to release the Operation Motorman files, which allegedly contact evidence of further widespread privacy intrusions by the papers.
> Gordon Ramsay sues over alleged email hack info