Glasgow health chiefs have urged the public not to attend A&E unless it very urgent.
A rise in covid cases is putting hospitals under additional pressure, with many "near capacity".
Greater Glasgow and Clyde NHS outlined the challenges facing them in a statement last night, the Scottish Daily Express reports.
It explained: "Covid-19 is still very much with us. Our hospitals are near capacity, with more than 620 Covid-19 positive patients on our wards with a diagnosis of 28 days or less.
"While the overall trend suggests the virus is less severe, and our ICUs remain relatively free from Covid-19 patients for the moment, it is still very transmissible.
"Large numbers of positive patients admitted to hospital - either as direct result of the virus, or admitted for another illness but having tested positive with no symptoms - is putting significant pressure on capacity and available bed numbers.
"This is having a knock-on effect at our A&E Departments and assessment units."
Follow Nicola Sturgeon’s covid statement as it happens today here
This news comes as A&E waiting times across Scotland dropped to the fourth-worst on record, leading to calls for health secretary Humza Yousaf to sort the issues out urgently.
Rising covid case numbers across the country have caused widespread concern amongst medical professionals, with Nicola Sturgeon due to announce a decision on getting rid of face masks on Tuesday.
The statement went on: "The rise in patient numbers and the logistical challenges this brings to our teams is being further compounded by the difficulties we face due to delayed discharges.
"This is a serious issue for us and is causing considerable concern, with over 300 patients delayed in their discharge from hospital.
"We continue to work closely with our HSCP colleagues, care homes, patients and families to arrange supported discharge for patients as quickly as possible.
"We are reminding the public not to come to A&E unless suffering from a very urgent condition.
"Everyone else who thinks they need urgent medical attention should speak to their GP first, or, call NHS24 on 111."
