A man who was convicted 11 years ago of offences connected to the Scottish National Liberation Army has been found dead in a prison cell in Aberdeen.
McIntosh pictured being led away in 1993
Andrew McIntosh, 49, had been remanded in custody a week ago on firearms charges along with two other men.
A fatal accident inquiry will be held into the death. The Scottish Prison Service said relatives had been told.
All three appeared in court charged with contravention of the Firearms Act 1968.
Grampian Police say investigations are continuing into the death, but there appear to be no suspicious circumstances.
One of McIntosh's co-accused made a second appearance at Aberdeen Sheriff Court on Monday, while a third man was released.
Alan McIntosh, 50, was committed for trial and released on bail.
Graeme Robert Otterson, 32, from Aberdeen, was released from custody.
Two of the men had been detained at the Forth Road Bridge on the morning of the official opening of the Scottish Parliament by the Queen.
Officers searched an area around the mouth of the River Don in Aberdeen in connection with the arrests.
The SNLA was formed by Adam Busby after the 1979 devolution referendum, which the organisation claimed was fixed.
Over the past two decades, its main tactics have been telephone hoax calls and devices sent through the post.
Hoax bomb threats were issued in a campaign of fear
McIntosh was jailed for 12 years in 1993 for conspiring to coerce the government into setting up a separate government in Scotland.
The High Court in Aberdeen heard McIntosh had masterminded a massive campaign of disruption which included placing hoax bombs outside oil industry offices and sending letter bombs to the Scottish Office.
He served six years and was released in 1999.
His trial at the High Court in Aberdeen heard how he had masterminded a massive campaign of disruption and fear.
It included placing hoax bombs outside oil industry offices and sending letter bombs to the Scottish Office.