The crash took place between a car and a pedestrian in Wigan Road, Atherton.
Emergency services were called to the scene just before 3 pm today. (October 21)
The road was closed in both ways between Atherligh Way and Liscard Street, but it has already reopened.
The injured boy, in his early ages, has been taken to Royal Manchester Children Hospital.
According to eyewitnesses at the scene, the crash happened close to The Talbot pub.
Footage from the scene shows there are a police car and an ambulance.
A spokesperson from Greater Manchester Police said: “Just before 3 pm this afternoon (Wednesday, October 21, 2020), officers were called to Wigan Road, Atherton to a report of a road traffic collision involving a car and a pedestrian.
“Emergency services are currently in attendance.”
“We sent a rapid response vehicle and an ambulance to the scene,” a spokesperson from North West Ambulance Service continued.
“We have taken a patient, a male in his early teens, to the Royal Manchester Children’s Hospital.
“His injuries are believed to be quite serious.”