China's network of detention centres in the northwest Xinjiang region is much bigger than previously thought and has been expanded in recent years, satellite imagery compiled by an Australian think tank has revealed.
The Australian Strategic Policy Institute said it had identified more than 380 "suspected detention facilities" in the region, where China is believed to have detained more than one million Uighurs and other mostly Muslim Turkic-speaking residents.
The number of facilities is around 40 per cent greater than previous estimates and, according to researchers, has been growing despite China's claims that many Uighurs have been released.
Using satellite imagery, eyewitness accounts, media reports and official construction tender documents, the institute said, "at least 61 detention sites have seen new construction and expansion work between July 2019 and July 2020".
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Fourteen more facilities were under construction in 2020 and around 70 have had fencing or perimeter walls removed, indicating their use has changed or they have been closed.
Beijing recently published a white paper defending its widely-condemned policies in Xinjiang, where it says training programmes, work schemes and better education mean life has improved.
It has previously defended the so-called training centres as necessary to stamp out extremism.
Following the publication of the latest report, Chinese government-controlled nationalist tabloid the Global Times cited "sources" stating ASPI researcher Alex Joske and contributer Clive Hamilton were banned from entering China.
SBS News has contacted DFAT for comment.
