A key witness in the murder trial of hunger strike prisoner John Dundon has been hospitalised.

April Collins was due to begin her testimony for the prosecution at the Special Criminal Court today, but the trial has now been adjourned until later in the month.

John Dundon, 31, of Hyde Road, Limerick is accused of murdering rugby player Shane Geoghegan who was shot near his home in Dooradoyle in November 2008.