The northwest Queensland family of a 17-year-old boy who has been missing since Saturday are urging anyone who has seen their son to contact police.

The search for a Queensland teen missing since Saturday has been stepped up after one of his friends took his own life.

Residents in the northwest town of Mount Isa have joined police in the search for Kyle Coleman, 17, last seen about about 6am on Saturday when he left a house in Skewes St, Soldiers Hill for the 3km walk to his home in Parkside.

Mount Isa Inspector Trevor Kidd says it’s a journey Kyle has made many times and his disappearance is out of character.

“We’re very, very concerned,” he told AAP.

“There is no information to suggest this is a (murder or suicide)”.

Insp Kidd says on Wednesday police found the body of a 21-year-old friend of Kyle’s who had helped in the search for the missing teen.

The man was found in a house in Skewes St and his death is not considered suspicious.

Insp Kidd says Kyle’s parents are distressed and are urging anyone who may have seen their son on Friday or Saturday to contact police.

“They want to know what’s happened to their son and they want their son home,” he said.

“It is a terrible, terrible situation, it’s a very traumatic situation.”

Up to 60 residents, including all of Kyle’s workmates, are helping officers look for the teen.

The search area includes Mount Isa city, Leichhardt River, Barkly Highway and a property near Camooweal, west of Mount Isa, which Kyle visited on Friday.

Insp Kidd says Kyle is well-known in the town and loves the outdoors.

He was last seen wearing a black T-shirt with a white motif, a white flat Obey cap, a pair of light coloured shorts and skate shoes.

He is Caucasian with sandy coloured short hair, hazel eyes, of a slim build and approximately 173cm tall. He may have been carrying a green sleeping swag and backpack.

* Readers seeking support and information about suicide prevention can contact Lifeline on 13 11 14 or Suicide Call Back Service 1300 659 467.