People who want to be tested for Covid-19 will now need an appointment.
Walk-in testing is being suspended temporarily at the test centres in McHale Park, Castlebar; Castlerea Fire Station, and the two testing centres in Galway.
The HSE says the walk-in test service is being paused from today, due to extremely high demand.
All requests for Covid-19 tests will be by appointment only.
Self-referrals can be made on the online HSE portal.