A third construction site in Dublin has been shut down after a worker tested positive for Covid-19.
The Elliot Group says it was made aware this morning by a sub-contractor that a worker had the virus.
The site in South Great George Street will undergo a deep clean tomorrow and the developer is waiting for further instructions from the HSE.
All workers have been told to undergo testing for Covid-19.
Tom Parlon, Director-general of the Construction Industry Federation, says it is a worrying development.
"Certainly, it is a concern but we have had discussions with the HSE today and unfortunately with Covid in the community that is going to be a continual fact of life now.
"We are developing some new guidelines now to come forward from HSE in the next few days that site operators will be able to manage."
Mr Parlon said that the message from CIF to its members is to redouble their efforts.
"Focus on the very basic that are still so important - hand hygiene and social distancing are so, so important."
Yesterday, it was confirmed that a worker on a construction site at the TU Dublin development at Grangegorman had tested positive for the virus.
John Sisk and Son confirmed the single case and that the site had been shut down for deep cleaning.
Previously, more than 20 workers at a site on Townsend Street in Dublin also tested positive for the virus.