Man held over documents

Castlereagh is the PSNI's Belfast headquarters

A man has been charged with having documents likely to be of use to terrorists.

He was arrested in connection with an ongoing investigation into a security breach at Belfast's police headquarters last month.

However, it is understood the documents do not relate to the break-in at the police centre at Castlereagh. The man was charged on Tuesday night.

Five people detained in a series of police operations in Belfast and Londonderry on Saturday were released without charge.

A Special Branch officer was assaulted and documents taken when three men entered an office inside the Castlereagh complex, in the east of the city, on St Patrick's Day.

'Republican involvement'

That theft occurred in the source handling unit, which is used as a "link-point" for security force informers and their police handlers.

Security sources have linked the incident to the Provisional IRA.

On Saturday, a Sinn Fein spokesman said republicans had played "no part in the raid on Castlereagh".

John Reid: Established review

Two separate investigations into the incident are taking place - the police's own and an inquiry by former senior civil servant Sir John Chilcot who will report directly to Northern Ireland Secretary John Reid.

Sir John Chilcot will be assisted by Colin Smith, a former Thames Valley chief constable and a former member of Her Majesty's Inspectorate of Constabulary.

The review will proceed in parallel with the criminal investigation which is being led by Detective Chief Superintendent Phil Wright, the most senior detective in Belfast.

Special Branch deals with intelligence work, some relating to informers, and has an anti-terrorism role in Northern Ireland.

One of the main police centres for the interrogation of terrorist suspects was located at Castlereagh. It closed at the end of 1999.