Emergency services were called to reports of a collision between a car and a child in Hazelwood Avenue, Eastbourne at around 3.50pm.
A 13-year-old boy was airlifted to hospital with potentially life-threatening injuries, a police spokesperson said. His next of kin have been informed.
Enquiries are ongoing to establish the full circumstances of the situation.
"Anyone who witnessed the incident or has any relevant dashcam or CCTV footage is asked to contact [email protected], quoting Operation Glenmore,” a spokesperson said.
1 / 3