suspect arrested

Police first received word of an attack in the town of Kongsberg, south-west of the capital Oslo, at around 18:13 local time (16:13 GMT).

Chief Oeyvind Aas said a suspect had been caught and seemed to have acted alone.

Police will investigate whether it was an act of terror, a spokesman said.

"It is a tragedy for all those affected," Mayor Kari Anne Sand told VG newspaper. "I have no words."

Police said on Saturday afternoon, the suspect armed with a machete was involved in a vigorous tussle with two other men.

The two men sustained serious multiple injuries and are admitted in the Intensive Care Unit at the Motootua Hospital.

The altercation was captured on camera and the video went viral on Facebook.

A thorough investigation into this matter is handled by the Police Criminal Investigation Division.

The suspect has remanded in custody until 22 June.

The plaque was laid last week during commemorations for the 75th anniversary of the battle of Guadalcanal.

Police said the plaque was recovered in the Lunga river area and they said the suspect was arrested near the New Zealand Camp east of Honiara.

The police have thanked the community including members of the suspect's immediate family for assisting in the arrest.

Photo: Supplied/ Terry Allen Bloody Ridge near Honiara