Terrorism Act: Two bailed in Birmingham
A brother and sister from Birmingham, arrested under the Terrorism Act, have been freed on police bail.
West Midlands Police said the pair - aged 23 and 18 - are suspected of possessing documents likely to be of use to someone committing or preparing an act of terrorism.
They were arrested on Thursday at an address in the Small Heath district.
Police added the arrests had been pre-planned and not made in response to any threat to public safety.
Computers and other electronic devices were seized and will be forensically examined.
Police said on Thursday that the investigation was likely to take some time owing to the number of files which will have to be assessed.