Australian cricket star Usman Khawaja’s brother has been arrested on charges of framing a man over a fake terror plot, reports the BBC.
Thirty-nine-year-old Arsalan Khawaja stands accused of forgery and an attempt to pervert justice.
In August, police charged a Sri Lankan student in Sydney over an alleged plan in a notebook about killing Australian politicians.
Mohamed Kamer Nizamdeen was detained for a month before being released.
The 25-year-old PhD student had claimed that he was framed by a rival at his workplace, the University of New South Wales.
On Tuesday, police alleged Nizamdeen had been "set up in a planned and calculated manner" Arsalan.
Arsalan, who worked in the same department as Nizamdeen, had been partly motivated by a "personal grievance" over a woman, police said.
Nizamdeen endured more than four weeks in solitary confinement after he was arrested on terrorism charges.
Police accused him of plotting the attacks in his notebook. An alleged hit list included the former Australian prime minister Malcolm Turnbull and landmarks such as the Sydney Opera House.
However, he was released in October after police failed to connect his handwriting to the writing in the notebook.
Nizamdeen, who has returned to Sri Lanka, has indicated he plans to seek compensation from authorities for his wrongful detention.
His brother Usman Khawaja is one of Australia's leading batsmen. He is set to play in the test series against India, beginning on Thursday.
News of Arsalan arrest and charges broke on Tuesday when Usman was batting in the nets ahead of Australia's opening Test match against India at Adelaide Oval. After training he spoke briefly from a prepared statement, reports ESPN Cricinfo.
"This is a matter for the police to deal with," Usman said in Adelaide. "Out of respect for the process, it'd be inappropriate for me to be making any further comment. I just ask for you to please respect my privacy and my family's privacy during this time."
Mitchell Marsh, the Australian vice-captain, joined Khawaja in declining to speak about the matter. "We only found out at training," he said, "so I think it'd be pretty inappropriate for me to comment at the moment."