Convicted loyalist killer Michael Stone has been released from police custody.
Loyalist killer Michael Stone was released from jail in 2000
Stone presented himself to police in London earlier this week and was brought back to Northern Ireland by PSNI officers.
Police said a 50-year-old man who was being questioned in relation to terrorist offences had been released.
A report will be sent to the Public Prosecution Service. Stone murdered three men at the 1988 funerals of three IRA members killed by the SAS.
He was released early in June 2000, under the terms of the Good Friday Agreement.
About 60 people were injured as Stone ran through Milltown Cemetery, firing shots and throwing hand grenades.
Security forces caught him at the edge of the cemetery, and he was later sentenced to several life terms.
His autobiography was published in 2003.