HSE Community Healthcare West has confirmed an outbreak of Covid-19 in an older persons' community residential facility in north Mayo.
RTÉ understands a number of residents and staff have tested positive for coronavirus.
Additional HSE staff and resources have been redeployed to the facility to assist with the management of resident safety and care.
In a statement, the HSE said it was conducting a daily outbreak teleconference with the facility and Community Healthcare West.
The statement continued: "The HSE continues to provide a range of supports to all long term residential facilities across the country, including private nursing homes.
"This support is primarily managed through area Covid Response Teams and includes management support, provision of free PPE and other necessary supplies, Public Health and other clinical inputs, accommodation arrangements for certain staff, support with sourcing staffing and, in some cases, the reassignment of HSE staff to support nursing homes."
The Mayo outbreak follows an unrelated Covid-19 outbreak at the Nightingale Nursing Home in Ahascragh, Co Galway.
The vast majority of residents and staff at the 31 bed facility were found to be infected with the virus.