A new helicopter will serve as a 24-hour air ambulance for Kent, Surrey and Sussex.
The newer version of the helicopter based in Redhill will ensure the aircraft is ready for night flying in the late summer.
To prepare for the 24-hour service, the charity's specialist paramedic crew have already started delivering a medical service using a response car throughout the night.
Adrian Bell, Chief Executive of the Kent, Surrey and Sussex Air Ambulance, said:
"We have replaced one of our helicopters with a new version capable of night operations. While we are waiting for the necessary regulatory processes to be completed we have started operating by car during the hours of darkness."
More top news
A chilly but dry and bright start with plenty of sunny spells today and feeling fresher for all.
Mist and fog in the west will be slow to clear for a dry and bright day but feeling fresher for all.
Rain clearing east tonight for a dry but fresher day tomorrow with plenty of sunny spells.