A man was subjected to a terrifying attack by a burglar in his own home.
The victim was woken up by the sound of someone breaking into his property in Booth Street, Greasbrough, on Saturday at about 1.30am.
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The masked burglar then attacked the man before fleeing the scene with some of his belongings.
A South Yorkshire Police spokesperson said: "The offender assaulted the victim, causing serious head injuries, before taking a quantity of cash and leaving the scene in a small black, sport-style hatchback.
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"The victim was taken to hospital where he remains in a serious but stable condition.
"The offender is described as wearing dark clothing with a hood or possibly wearing a balaclava.
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"Officers are asking anyone who saw or heard anything suspicious in the Croft Street or Booth Street areas to contact 101 quoting incident 136 of 4 August 2018.
"You can also contact Crimestoppers anonymously on 0800 555 111."