The British Ambassador to Ireland, Ivor Roberts, has criticised Irish politicians and the media for making "alarmist" statements about the threat Sellafield poses to the Irish population.
Mr Roberts said he recognises the concerns harboured by Ireland over the highly controversial nuclear plant, but said those in positions of power should report the matter in a balanced way.
Ireland has recently launched three separate international court cases in an attempt to have Sellafield closed, a move that has already attracted support from Norway.
A report on safety at Sellafield said an accident at the plant’s storage tanks would have severe implications for Ireland, while an attack on the plant could potentially release 50 times the amount of radioactivity released during the Chernobyl disaster in the Ukraine in 1986.