A 16-year-old boy, who was badly injured while sledging remains critically ill in hospital, police have said.
Liam Stafford, 16, hit a tree in Flatts Lane Country Park, Normanby, Middlesbrough, at 1pm yesterday.
He was flown by the Great North East Air Ambulance to the James Cook University Hospital in Middlesbrough suffering from head injuries.
Cleveland Police appealed for witnesses as a spokeswoman described his condition as critical but stable.
More top news
The referendum story is rapidly heading south. Scottish voters were promised more power - now English and Welsh voters ask "what about us?"
The Scottish independence referendum was threatening to turn into a huge boost for separatist movements in many countries in Europe.
A sigh of relief across Westminster and a crushing sense of disappointment for 45% of Scotland, but Yes campaign could not have done more.