Gardaí have arrested a woman this morning in relation to an ongoing investigation at a care home in Co Longford.
The woman, aged in her late 30s, is currently being detained under section 4 of Criminal Justice Act.
In a statement, the HSE said it has ensured that protective measures for its clients and residents are in place.
"The HSE has confirmed that it commenced an investigation following recent complaints relating to an Intellectual Disability unit in Co Longford," the statement read.
"The appropriate statutory authorities have been notified, and investigations are ongoing.
"The HSE has been in contact with and is supporting the clients affected and with their families.
"The HSE has ensured that all protective measures to ensure the welfare of our clients and residents are in place, and until investigations are complete into the alleged incident/s, it would be inappropriate to make any further comment."