United Lincolnshire Hospitals NHS Trust (ULHT) bosses warned people to only attend Lincoln County Hospital for emergencies.
The trust issued a warning on Monday, January 15 stating that the hospital is ‘extremely busy’ and emergency patients will be given priority.
A hospital spokesperson said: “Lincoln County Hospital A&E department is extremely busy today and we are asking patients to only attend if it is an emergency.
“If people come to A&E and it is not an emergency they will have a long wait as we will prioritise the sickest patients.
“Our advice is please consider if you could be helped by visiting your local pharmacy, by contacting your GP, or attending a walk in centre or urgent care centre.
“If you do become unwell and need medical help fast but it’s not a 999 emergency, call NHS 111 for clinical advice, assessment and for direction to the most appropriate services for treatment.”