Aboriginal Community Controlled Organisation Thirrili Ltd will receive a $5million funding boost from the federal government to ensure the continued delivery of support to Aboriginal and Torres Strait Islander families impacted by suicide.

The funding extension to Thirrili ensures culturally safe and trauma-informed postvention services are available for families affected by the loss of a loved one by suicide.

The funding will support continuation of a 24-hour help line, postvention supports, an Emergency Relief Fund for closest next of kin, community capacity building to support healing and partnership development.

Minister for Indigenous Australians, Malarndirri McCarthy noted that World Suicide Prevention Day was this week.

"The sad reality is far too many First Nations people are dying by suicide," she said.

"First Nations people are twice as likely to die by suicide than non-Indigenous Australians, and the devastating impact on their loved ones and communities is enormous and ongoing.

"This funding for Thirrili ensures support is available from an organisation that is experienced in delivering vital services to First Nations communities in a culturally appropriate way.

Suicide remains the fifth leading cause of death among First Nations people, and Indigenous suicide rates are more than double the national average.

Thirrili delivers the Indigenous Suicide Postvention Service, a national service available to all First Nations people, families and communities.

The federal government said on Friday that Closing the Gap on the high rates of suicide for First Nations people, by investing in suicide prevention and postvention services, and supporting improved social and emotional wellbeing, is a high priority.

The government said it is committed to reforming the suicide prevention system "so every Australian has access to support when and where they need it" and is calling for feedback on the draft National Suicide Prevention Strategy.

The federal government is also supporting Gayaa Dhuwi to develop a First Nations suicide prevention strategy.

"Continuing to invest in suicide prevention and postvention services which support First Nations communities demonstrates our government's commitment to reducing the disproportionate impact of suicide and traumatic loss on First Nations families," Senator McCarthy said.

Thirrili supports First Nations families and communities after suicide. They can be reached on 1800 805 801, 24 hours a day, 7 days a week, Australia wide.

If you or someone you know is in crisis, connect with 13YARN Aboriginal & Torres Strait Islander Crisis Supporters on 13 92 76, available 24/7 from any mobile or pay phone, or visit www.13yarn.org.au - no shame, no judgement, safe place to yarn.