For the families of Zayne Stevens, Brenton Shar, Wylie Oscar, Jayo Rivers, and Wesley and Clinton Lockyer, the pain of unanswered questions has stretched for years.

In recent years, the disappearances of these six Indigenous men from northern Western Australia has shaken their families and communities, sparking calls for urgent action.

In September, their loved ones rallied at Parliament House in Perth, demanding more significant police resources and community support to locate the missing men.

The Western Australian government is now offering a $500,000 reward to solve these long-term missing persons cases in the state's north, marking the first time in WA's history that such a substantial reward has been introduced to address long-term disappearances.

The new reward, which will be available early next month, is for information leading directly to the location of a long-term missing person.

According to WA Police, a long-term missing person is someone who has been missing for more than 90 days with no clear evidence of criminal involvement in their disappearance.

Member for the Kimberley, Divina D'Anna, expressed her support for the reward initiative and the ongoing efforts to provide closure to families.

"We cannot begin to imagine how difficult it is for these families to live without answers," she said.

"Any tools or resources that can bring clarity and closure to these heartbreaking cases are welcome."

Western Australian Minister for Police, Paul Papalia, said the government and WA Police Force are committed to finding answers for the families living with trauma and uncertainty.

"Families of missing people not only endure incredible pain and loss but also live with the agony of 'not knowing'," Mr Papalia said.

"This new reward provides half a million reasons for someone with crucial information to come forward."

He emphasised that even the smallest detail could be the key to solving these cases.

The announcement follows growing community concerns about the disappearances, with some raising questions about whether the illegal drug trade in remote northern regions may have played a role.

At a recent press conference, Mr Papalia acknowledged these concerns however stated there was currently no evidence of foul play.

Among the six missing men is Kimberley man Jayo Rivers, last seen at a campsite in Queensland in October 2021.

A coroner recently determined it was likely he was the victim of foul play, though investigations remain open.

Wesley Lockyer disappeared from the Jinparinya community near Port Hedland on October 24, 2022.

Just a week later, his cousin, 30-year-old Clinton Lockyer, went missing in Roebourne.

In November 2022, 22-year-old Wylie Oscar was last seen near Fitzroy Crossing.

His aunt, June Oscar, has been vocal in protests, vowing to continue raising awareness until answers into her nephew's disappearance are determined.

Meanwhile, 21-year-old Pilbara man Zayne Stevens disappeared after his car became bogged during a nighttime drive near Broome in April 2022.

His family has led marches in the Kimberley to demand better search procedures.

The most recent case is that of 37-year-old Geraldton man Brenton Shar, last seen on May 1, 2022.

Mr Shar's family reported him missing nine days later, hoping for any leads that might reunite them.

WA Police will launch a dedicated website to assist with the reward program.

Members of the public with information can contact Crime Stoppers on 1800 333 000.