Gardaí and Tusla have launched investigations, with two staff members having their Garda vetting clearance suspended, while two others are suspended for allegedly failing to report concerns in a timely manner.
The allegations involve up to six toddlers, aged between two and three years old.
According to The Irish Times, a staff member initially raised concerns with management in mid-March, but when no action was taken, they anonymously reported the situation to Tusla later that month.
The whistleblower is also believed to have contacted a parent and Gardaí through a third party.
The accusations include slapping children’s heads, hitting their legs, force-feeding them until they vomited, calling one child "fatty," and wiping noses so hard that children were injured.