Four people arrested on suspicion of assisting Iran's intelligence service

Four people have been arrested on suspicion of National Security Act offences.

The men were arrested on Friday 6 March on suspicion of assisting a foreign intelligence service (in this case Iran).

CTP detectives arrested one Iranian and three dual British-Iranian Nationals at addresses in Barnet and Watford, as part of a pre-planned operation.

The investigation relates to suspected surveillance of locations and individuals linked to the Jewish community in the London area.

A 40-year-old man and a 55 year-old man who were arrested at addresses in the Barnet area, a 52-year-old man who was arrested at an address in Watford and a 22-year-old man who was arrested at an address in Harrow. Searches are ongoing at the Barnet addresses and the Watford address as well as further addresses in Barnet and Wembley.

Six other men aged 29, 39, 42, 49 and two aged 20, were arrested at the same location in Harrow on suspicion of assisting an offender. One of the men was further arrested on suspicion of assaulting a police officer.