A man from Lincolnshire has been arrested for terrorism offences.
Police raided a property this morning and arrested the 46-year-old on suspicion of membership of a proscribed organisation and malicious communications.
He remains in police custody for questioning and enquiries are ongoing.
Investigators say today's arrest is part of a wider operation into the activities of a banned organisation.
Any information that people have can be dealt with in the strictest of confidence by calling the police on 0800 789 321.