A woman was airlifted to hospital with serious injuries last week after she was struck by a car in Bexley.
The 60-year-old woman was hit by a silver Honda Stepwagon in Heath End Road, Bexley at 11am on Friday, March 24.
She remains in hospital where she is in a critical by stable condition.
Police Sergeant Glyn Walker, of the serious collision investigation unit, said: "I am interested in speaking with any witnesses that may have seen something which could be helpful to our enquiries.
"We understand several members of the public went to the scene to help and I'm keen to talk to anyone we haven't spoken to yet."
Police are asking anyone who was in the area at the time with information to contact SCIU on 01622 798538 or email sciu.td@kent.pnn.police.uk quoting reference DH/85/17.
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