Published: 09:00, 12 April 2014
| Updated: 09:14, 12 April 2014
The air ambulance was called to Riverview Park in Gravesend yesterday evening.
A man working on a door at a house in Sara Park injured himself and fell backwards.
The 46-year-old man was said to have hit his head and the Kent Air Ambulance was called at about 5.30pm.
He was flown by helicopter to a London hospital.
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