A man has been found with serious head injuries at the rear of flats in Liverpool.
The man, believed to be 19 years old, was found by police near Princes Road, Toxteth, on Tuesday at about 1845 GMT.
He was taken to hospital and is being treated at the Walton Neurological Centre where his condition is described as serious.
The area in which he was found has been sealed for a forensic examination and house-to-house inquiries are under way.
In a separate incident, police were called to reports of a man falling from a window of a property Princes Avenue, which runs parallel with Princes Road.
The man, believed to be 39, was taken to hospital where his condition is described as serious.