Five people in Canada have been charged with murder after the discovery of bodies in a farm field in Ontario.
Police made the arrests at a farmhouse six miles from the site
The eight victims were shot dead and found in abandoned vehicles. Six of them were members of a biker gang known as the "Bandidos", police said.
Official sources described the killings as an "internal cleansing" by fellow members of the gang, a rival to the Hells Angels.
Four men and one woman were arrested at a farmhouse near the site.
At least one arrested man was a full member of the Bandidos, police said.
"The victims of this crime have been positively identified and are associated (with), or belong to, the Bandidos motorcycle gang," Ontario police chief Ross Bingley told reporters.
"This is an isolated incident with ties to the Bandidos."
The US Hells Angels said on their website: "The Hells Angels Motorcycle Club, or any of its members, are not involved in this crime in any way shape or form."
The farm where the bodies were found is near the village of Shedden, about 20km (12 miles) from the city of St Thomas, south-west of Toronto.
Russell Steele and his wife Mary, who own the nearby fields, told reporters that the cars were not parked there when they drove past late on Friday.
They called the police on Saturday when they saw the cars. They were unable to see inside, because a blanket was covering the window.
"We didn't see anybody in them, so we just phoned the cops with the licence plate numbers," Mr Steele said.