The councillors and officers of Lewes District Council and Eastbourne Borough Council are deeply saddened at the news of the death of His Royal Highness The Prince Philip, Duke of Edinburgh.
Our thoughts are with the Royal Family at this time.
Details of an online book of condolence are expected to be published in due course.
The Union Flag is flying at half-mast outside Southover House in Lewes and the Town Hall, Bandstand and Redoubt in Eastbourne.
The picture shows the Union Flag also at half mast at Seaford Museum.