"There has been a significant failure by government agencies in Central Australia to put into practice the plans agreed with your government before the outbreak," the letter reads.

"This has directly led to COVID spreading out of control in the Aboriginal communities of Central Australia and beyond."

The letter is co-signed by Central Australian Aboriginal Congress acting CEO Josie Douglas, Central Land Council CEO Les Turner, Aboriginal Medical Services Alliance NT CEO John Paterson and Lhere Artep CEO Graeme Smith.

The authors say the call is "urgent" and write that "it is not too late to act" by introducing stronger restrictions.

https://www.abc.net.au/news/2022-01-28/most-aboriginal-covid-patients-nt-hospital-safety-concerns/100785980