The Health Service Executive says multiple groups of people have been affected by an outbreak of food poisoning due to salmonella in Dublin.
The HSE knows of more than 50 people, including four children, who were taken ill after a north Dublin food business supplied food to separate groups of parties on 13 and 14 May.
Five people were admitted to hospital and 16 of the ill have been confirmed as having salmonella.
The HSE was notified of the first cases of food poisoning on 18 May and a north Dublin food business was identified as the common link in the outbreak.
A closure order was served on that business the day after.
Members of the public who think they may be ill as a result of the outbreak should contact their GP.
They can also contact the HSE’s Environmental Health Service or Department of Public Health in Dublin to assist in the investigation.
The HSE is liaising with the Food Safety Authority of Ireland and the investigation is ongoing.