- The man, 20, was arrested in a 5am raid in Worthing, West Sussex this morning
- He was arrested at house by officers from Counter Terrorism Policing South East
- Police said he was suspected of being involved in Islamist-related terror offence
A 20-year-old man was arrested on suspicion of 'Islamist-related' terrorism offences in a seaside town in West Sussex this morning.
Officers from Counter Terrorism Policing South East (CTPSE) arrested the man in a 5am raid at a house in Worthing.
He was apprehended under section 41 of the Terrorism Act (2000) on suspicion of being involved in the commission, preparation, or instigation of an act of terrorism, police said.
He remains in custody, with officers confirming the operation was 'pre-planned'.
A spokesman for counter-terrorism policing added the arrest was intelligence-led and 'linked to Islamist-related terrorism'.
Detective Chief Superintendent Kath Barnes, head of CTPSE, said: 'This arrest forms part of a pre-planned operation by CTPSE, working alongside colleagues at Sussex Police.
'I would like to thank the local community for their patience while we carry out searches and continue our investigation.'
Chief Inspector Sarah Leadbeatter, Sussex Police district commander for Adur, Worthing and Horsham, said: 'Sussex Police is working closely with counter-terrorism investigators to support their operation, which was intelligence-led and not in response to any specific threat to our local area.'