A&E departments in hospitals across Lincolnshire are struggling to cope with an influx of patients.
United Lincolnshire Hospitals NHS Trust (ULHT), which runs Grantham Hospital, is urging people to only use A&E if absolutely necessary and to call NHS 111 or seek advice from a GP or local pharmacist where possible.
The high demand for A&E services and beds is being seen in Grantham, Lincoln and Boston.
Patients with minor injuries are asked to attend walk-in centres if available, urgent care centres or minor injuries units in the first instance.
A spokesman for ULHT said: “With the continued support of our staff we have taken actions to meet the demand for our services. Additional ward rounds ensure people who are well enough to go home are discharged in a timely fashion which then frees up beds for other patients.
“We are also working with our local commissioners to help care for patients with less severe medical conditions in community based facilities.
“The trust is liaising with Lincolnshire GPs to ensure that patients not requiring hospital care are not referred to hospital during this busy time.
“No single incident has caused this pressure.”