The Health Service Executive has confirmed that 21 people have now died at one nursing home in Dublin since the start of April.
11 people died at St Mary's Hospital in the Phoenix Park between 2 April and 17 April. The HSE said 10 more residents of the nursing home have died, bringing the total to 21.
All of those who died tested positive for Covid-19. St Mary's provides care for older people and has 198 residential places in total.
In a statement, the HSE expressed its sympathies to the friends and families of those who died saying "our thoughts are with them at this difficult time".