Update
According to Dolnośląskie Alarmowo:
(...) in a forested area, near a petrol station, a serious accident occurred involving an 8-year-old who was crushed by a quad bike.
It adds:
The boy's condition proved serious enough that he had to be transported to hospital by a dispatched helicopter of the Polish Medical Air Rescue service.
Firefighters, a medical rescue team and police are at the scene.
Initial information indicates that the quad bike overturned. The vehicle reportedly crushed the child.
A Polish Medical Air Rescue helicopter (LPR) was dispatched to the scene.
More information soon.
