A number of farmers have staged a blockade at an Aldi distribution centre in Kildare in a row over beef prices.
Farmers are calling for an immediate rise in beef prices, saying that Ireland is well behind both UK and EU levels.
They believe retailers are helping drive down the cost of food, which affects the poor price farmers are paid for their cattle.
The Irish Farmers' Association has accused them of "working hand in glove" with processors.
The protest, at the Naas facility in which Aldi delivers food to stores across the country, will last 12 hours.
The IFA tweeted: "Set up at @Aldi_Ireland in Naas for the next 12 hours.
"Retailers are part of the beef supply chain that's broken. @joehealyfarmer will be on @morningireland after 8am."
An Aldi spokesman said: "Aldi is extremely disappointed by today’s IFA protest at its Naas Regional Distribution Centre.
"We welcomed the resumption of the Beef Taskforce this week and have engaged openly with farmer representative organisations on the beef issue over recent months.
"Aldi is fully committed to co-operating with the Beef Taskforce and met with the one of the representative groups, the BPM, as recently as last week to further update our position.
"As part of our preparations for the Taskforce, we have initiated research on a wide range of beef products to determine a number of issues.
"Our work also includes a complete review of procedures and processes with our suppliers to ensure we are meeting all customer and market requirements.
"We remain committed to reporting back through the Taskforce and playing a fulsome role in the process.
"Any action outside of this process is short-sighted and not constructive."
