Kent Police were called to the War and Peace Revival Show in Folkestone earlier this morning after one of the exhibitors was injured. It is believed the woman injured her hand and was taken to the William Harvey Hospital.
Police are at the scene making enquiries to establish what happened but say they are not looking for anyone else in connection with the incident. The show remains open to the public.
More top news
A minute's silence will be held across the UK at midday to remember the victims killed in the Tunisia beach attack a week ago.
Police said they were closing the investigation into who sold the model and TV presenter the drugs which killed her.
A nurse who is to be honoured with OBE for running an Ebola treatment unit has described the military operation in Sierra Leone as "scary".