Police are investigating how a man sustained serious head injuries in Co Londonderry.
The man, who is aged in his 40s, was found in a house in Dungiven on Monday. He remained in a critical condition in hospital on Friday.
Police said the man, who was wearing a white T-shirt and blue jeans, was dropped off by a friend on the Garvagh Road in Dungiven at around 1.30am on Monday morning.
He was later found with the injuries inside a house on the street.
Officers said they were seeking assistance from the public to help determine the man’s movements between 1.30am and 3am on Monday.
A PSNI spokesperson said: “The man remains in a critical condition in hospital and at this time it is unclear exactly where or how he sustained his injuries.”
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