A man has been arrested on suspicion of terrorism offences in the Clifton area of Bristol.
The 33-year-old was detained by Counter Terrorism Police at around 11pm on Monday 9 December.
Police say the arrest was linked to Islamist-related terrorism but stressed the incident was not related to the London Bridge terror attack on 29 November.
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The man remains in police custody, and officers are carrying out a search of the house in Clifton.
Superintendent Andy Bennett, of Avon and Somerset Police, said the force would have "an increased policing presence in the local area".