An elderly Australian man is in a Bali hospital with severe head injuries after his friends allege he was viciously bashed in his villa.
It was the second time that John Bourke, a retired engineer from the Northern Territory, had been attacked in recent days, according to his friend Brandon Ingram. 
Mr Ingram said he had his suspicions about who was responsible for the attack on the 63-year-old, who has lived in Bali for 10 years.
"It's a little bit dangerous. We want to let the police investigate first," said Mr Ingram, who attends the Gereja Kristus Yesus church in Kuta with Mr Bourke.
Mr Bourke was found unconscious in his living room at 4.30am on Wednesday by a friend, Polce Fanggidae, who had stayed the night upstairs in Mr Bourke's villa at Kerobokan.
"When I was asleep, around 1.30am, I heard noises, but I didn't think anything of it and went back to sleep. By 4.30am, I heard louder noises. When (John) didn't answer, I looked down from the second floor and saw him in the living room, covered in blood. There were trails of blood from his room to the living room."
Mr Polce said he had tried asking Mr Bourke what had happened on the way to the hospital but he had lost too much blood and was too badly hurt to respond.
"I am too scared to return to the villa, but John said to me about three days ago, if anything happened to him, if he died, he wanted me to take care of the dog. He cares a lot about the dog. So I plan to go there tonight."
Mr Polce said he was a friend of Mr Bourke's, who had recently helped him sell his TV and some chairs so he could pay for his visa extension.
"I bring food - he doesn't have any family," Mr Polce said. He said nothing valuable had gone missing from the villa after the alleged attack. 
Denpasar crime division police chief Reinhard Habonaran Nainggolan said there was no sign of a break-in. "It was a closed scene. No one else was there other than the victim and the man who found him."
Mr Reinhard said police were still investigating what had happened. "We can't question the victim yet, because he's still unconscious."
Mr Ingram said Mr Bourke had been attacked 11 days ago by someone who broke in and hit him with a stick.
"This time he was hit by a sharp object that caused a laceration above his left eye." A second blow to the back of his head, that appeared to have been inflicted by a machete-type weapon, had caused severe bleeding to the brain.
Doctors at Sanglah Hospital in Bali are conducting scans before deciding whether to operate.
Members of the Gereja Kristus Yesus church are establishing a Gofundme page to help cover Mr Bourke's medical costs as he does not have insurance.
A spokeswoman said the Department of Foreign Affairs and Trade was providing assistance, in accordance with the Consular Services Charter, to an Australian man currently hospitalised in Bali.
"Due to Privacy Act obligations, we will not provide further comment," she said.
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