Hundreds of batches of water from an Irish bottling plant were found to be contaminated with arsenic.
It's mostly own-brand water at at shops and supermarkets which has been affected.
Aldi, Lidl, and Dunnes Stores have been told to take water off the shelf.
So have the convenience stores Spar, Mace, Londis, and Applegreen.
#FoodAlert Recall of branded bottled waters due to elevated levels of arsenic. See: https://t.co/1S23Y3msmt pic.twitter.com/KVnlT8bAiG
— FoodSafetyAuthority (@FSAIinfo) August 2, 2019
Chippers too will have to clear their fridges, because water bottled for members of the Irish Traditional Italian Chippers Assocation are also contaminated.
Even the "Plane Water" available at airports has been affected.
A full list with batch codes is available here.
Arsenic occurs naturally in water but the levels are strictly monitored by regulators in all water for human consumption.
Retailers are being asked to check the list on the Food Safety Authority's website.
Point-of-sale notices will be displayed in stores supplied with the implicated batches.
The public is being told not to drink it and seek medical advice if they feel ill.