Dissident republican grouping Óglaigh na hÉireann have claimed responsibility for an attempted bomb attack in Derry.
110lb of home-made explosives were planted in a beer keg and left in a car opposite Bishop Street Courthouse in Derry on Sunday evening.
Óglaigh na hÉireann have told journalist Brian Rowan that the attack was an attempt to kill police officers.
Police in Derry said the courthouse device could have "killed or seriously" injured passers-by had it detonated, as well as causing considerable damage to nearby property.
It was made safe after a number of controlled explosions were carried out on Sunday evening.
The incident caused major disruption, with a number of residents evacuated from the area, including elderly people living in sheltered housing at Alexander House, very close to the courthouse.
Justice Minister David Ford condemned the attacks, saying he is "thankful" no-one was hurt.