A Royal Marine from County Antrim made 14 pipe bombs which were to be used by dissident republicans to attack police.
A court hearing to decide how long Ciarán Maxwell will serve in prison is taking place at the Old Bailey. The court heard that four of the pipe bombs were used in Northern Ireland – and two detonated.
In February, Maxwell, 31, admitted a number of offences, including bomb-making and storing stolen military weapons. The Larne man also pleaded guilty to drugs and fraud charges. The sentencing hearing is expected to take up to three days. Maxwell is not in court, but is appearing via video link from Woodhill Prison in Milton Keynes.
According to the charge details, he had a stash of explosives in 12 purpose-built hides in England and Northern Ireland. DNA evidence found at one of the County Antrim hides led to Maxwell’s arrest.