This is a new twist in the phone hacking investigation. The police have already made arrests and some charges like Rebecca Brooks and Andy Coulson on phone hacking.
But today they made clear that this is a new inquiry into the separate phone hacking allegations from 2005 and 2006.
So there are potentially new victims out there that don't know that there phones have been hacked and the police are now going to be in contact with them.
The six people arrested today are all former News of The World journalists .
Former head of features, Jules Stenson, former showbiz columnists Rav Singh and Polly Graham, Matt Nixson and two journalists - who now work for The Sun - Jane Atkinson and Rachel Richardson.Tonight, Scotland Yard said that five of the six people arrested have been released on bail.
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