In Belfast, the homes of two prominent Sinn Féin members, former leader Gerry Adams, and Bobby Storey, were attacked with explosive devices last night.
Both men reported that no-one was hurt in the attacks, although Northern Ireland police said they discovered the remnants of large industrial firework-type devices, capable of causing serious injury, at both scenes.
Mr Adams was the leader of Sinn Féin from 1983 until earlier this year, and was a key figure in the resistance against British rule in Northern Ireland.
The attacks come amidst a resurgence of violence in Northern Ireland, with recent clashes in Derry and loyalist violence in Belfast.