Armed police and a helicopter are attending an incident in the Arboretum park area in Lincoln.
A police helicopter has been circling around the prison and Monks Road area this afternoon and armed officers were in the park, eyewitnesses said.
Police vehicles have also been seen nearby, including Monks Road and Greetwell Road near the hospital and prison.
Unconfirmed reports suggested the incident involved a Lincoln Prison inmate who escaped from Lincoln County Hospital care — but police later confirmed they are false.
The Lincolnite has contacted Lincolnshire Police. We will update when we know more.