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."

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