A legal claim seeking £13.6bn in damages for UK publishers from Google for allegedly rigging the online advertising market has made a significant step forward.

The Competition Appeal Tribunal has said it is allowing the claim to proceed as a collective action.

The claim is being funded by Fortress Legal Investment on behalf of three representative claimants: tech journalist Charles Arthur, consumer rights lawyer Kate Wellington and former Ofcom director Claudio Pollock. The three claimants have formed a Limited Liability Partnership called Adtech Collective Action.