The cyberattack on the HSE has led to the cancellation of radiation treatment for cancer patients attending Cork University Hospital.
Kerry Cancer Support Group operates the Kerry Cork Health Link Bus which brings patients to Cork University Hospital for treatment.
Spokesperson Breda Dyland says radiation at CUH was cancelled today and will not take place tomorrow because of the cyberattack.
She says those who've concerns may contact a hotline number established by CUH's Radiation Oncology Centre.
The number is 021 4234774.
Breda Dyland says because of the cancellations at CUH, the health link bus won't operate tomorrow.