Three people who were due to work as Olympics security staff at St James' Park in Newcastle have been arrested on suspicion of immigration offences. The Home Office says they were employed by a private security firm.
The three were arrested on Wednesday, just 24 hours before the Mexico v South Korea match. Two people remain in police custody. One has been released without charge.
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The pair defrauded Durham County Council out of nearly £100,000 but were given suspended sentences.
Gascoigne is alleged to have sent abusive tweets, text messages and telephone calls to Amanda Thomas in March this year.
The Black Cats are attempting to find their seventh permanent boss since the Irishman's departure.