Two men have been charged with the murder of Bradley Lomax a week after his body was found on a Canterbury riverbed.

Police launched a homicide inquiry after Lomax's body was found on September 4 beside the Waimakariri River, north of Christchurch. It's understood he was shot.

Detective Inspector Greg Murton said on Monday two men had been charged with murder. Police were examining two properties, one in Oxford and one in Rangiora. Officers would guard them overnight. 

The pair would appear in the Christchurch District Court on Tuesday.

READ MORE: 'A big teddy bear with tough stickers' found dead on Canterbury riverbed

When asked whether Lomax's death was gang-related, Murton said "it's not gang versus gang".

He confirmed Lomax got to the riverbed by car. He would not comment as to whether he was alive at the time.

Earlier on Monday, several hundred people, including members of the Rebels Motorcycle Club gang, attended the 24-year-old's funeral at the St Columbus Anglican Church in Hornby. The church was full when the service began, leaving about 100 people standing outside.

The front of the funeral sheet depicted a young Lomax, wearing a suit, while a smile spread across his face. The back of the notice showed Lomax sitting on a sofa with his son.

The service ended with Lomax's friends and family performing a guard of honour as the hearse left the service.

A death notice published on Saturday said Lomax was "first and foremost a loved and devoted father".

"A loved and cherished son, stepson, big brother, brother-in-law, grandson, nephew, cousin and friend to many."

Do you know more? Email sam.sherwood@fairfaxmedia.co.nz

Lomax was a member of the Rebels Motorcycle Club and father of one. There was a suggestion he had recently left the gang.

A group out four-wheel-driving found his body on the Waimakariri riverbed shortly before 10pm on September 4.

 - Stuff