Labour Senator Jimmy Harte, who suffered serious head injuries as a result of a fall in Dublin in November, has been transferred to Letterkenny General Hospital.
Senator Harte was moved from the intensive care unit at Beaumont Hospital to Co Donegal on Tuesday.
However, he remains seriously ill in Letterkenny hospital, where visiting is restricted to immediate family members.
The accident happened after Mr Harte had watched the Republic of Ireland-Latvia football match on Friday 15 November.
It is believed he fell later on in the night close to his apartment.