(BBC) Four people are being questioned following a series of terror arrests on Thursday as part of an investigation into a suspected plot in the UK.
Armed police raided a house in Ilfracombe Gardens, Romford, and a flat in Frank Slater House, in Green Lane, Ilford, both in east London.
A man aged 31 and a 17-year-old boy were held at one address, along with a 27-year-old man at the other. A man aged 32 was arrested in Leicestershire.
Police said they all remain in custody.
BBC News home affairs correspondent Daniel Sandford said sources indicated the arrests were part of a potentially “significant” counter-terrorism operation and related to a suspected plot in the UK.
