A teenager is fighting for life after the scrambler bike he was riding veered off the road and hit a tree.
The 18-year-old was rushed to hospital when his orange off-road bike crashed shortly before 5pm on Sunday.
Emergency services were called to the site of the collision on Warrington Road, in Wigan, close to the junction with Dale Street.
Paramedics treated the boy at the scene before taking him to a local hospital where he is being treated for serious head injuries.
Greater Manchester Police issued an update on Monday to say that his condition was now critical and he was fighting for his life.
In a statement, officers said they are appealing for witnesses to the crash to come forward to help with enquiries.
The force added: “Police are appealing for information after a man has been left in a