A fourth person has been arrested in connection with claims that Tottenham Hotspur employed people to spy on West Ham United and Olympic Park Legacy Company (OPLC) officials during their bid to take control of Stratford’s Olympic Stadium.

A 45-year-old man was detained by officers from the Metropolitan Police’s Economic and Specialist Crime Command on suspicion of ‘fraud offences’ this morning and is currently in custody at a south London police station.

A Met Police spokesman confirmed the arrest, at a south London address, was in relation to allegations by West Ham and the OPLC in respect of the “unlawful obtaining of information.”

He added: “Detectives have been conducting a search at the residential property and have seized some material.”

Tottenham strongly deny ordering surveillance on OPLC officials and West Ham United Football Club, including vice-chairman Karren Brady.

The two clubs were involved in a dispute after the OPLC handed control of the Olympic Stadium to the Hammers. The agreement subsequently collapsed last October amid legal challenges.

The stadium will now remain in public ownership, with Newham Council re-confirming its �40m commitment to the venue.

It follows last week’s arrest of a 57-year-old man from Cheshire in connection with the investigation. He has since been released on bail until next month.

Two men, aged 29 and 39 respectively, were arrested and bailed in November last year.