The Emergency Department is under pressure with many patients requiring admission
Some 27 patients are on trolleys in Naas General Hospital.
516 people are waiting for a bed in hospitals around the country this morning.
INMO figures show 397 people are in emergency departments, while 119 are in wards.
University Hospital Limerick, Cork University Hospital and University Hospital Galway are the most overcrowded.
Naas General Hospital has been experiencing very high levels of attendance over the weeknnd. The Emergency Department (ED) is under pressure with many patients requiring admission, it said.
The Management at Naas General Hospital are asking patients with non-emergency conditions to seek assistance from other parts of the health service such as their local Pharmacist, GP, GP out of hours service, or a local injury unit.
Unfortunately, patients who are presenting at the ED in Naas General Hospital with non-urgent conditions are experiencing very long waiting times to be seen, it said.
Any patient who needs emergency hospital care will be seen and Naas General Hospital is urging such patients not to delay attending the ED.
Do not delay in seeking medical attention if you suspect you are having a heart attack or stroke, please dial 999 or 112 in an emergency.