Letterkenny General Hospital was at crisis point last night with a major overcrowding of both hospital beds and the A&E department.
Hospital management are assessing the situation in a bid to quell the overcrowding.
The NowDoc service has been told only to refer very needy cases to the hospital.
The general manager of the hospital Sean Murphy is now on site examining the situation.
The Medical Assessment Unit has now also been opened up to general patients in a bid to cope with the large volume of patients.
A source at the hospital said the situation is at crisis point but staff and management are trying their best to cope.
“It is pretty bad and there are now discussions taking place to decide to place extra patients on beds in the corridors.
“There is no one reason for it but rather an overall build-up of patients and the presentation of new patients in the past couple of days.
“It is pretty hectic up here but staff are trying their best to cope,” said the hospital source.