Some of the holding companies behind Vincent Tchenguiz's Peverel Group have gone into administration.
Peverel Limited, Peverel Group Limited, Aztec Opco Developments and Aztec Acquisitions have all gone into administration.
Administrator Zolfo Cooper says the move does not affect the group's operating companies.
Mr Tchenguiz was arrested and questioned by police earlier this month. He was released the same day.
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