It was an “ethnic Norwegian” according to Reuters.
OSLO | Fri Jul 22, 2011 5:39pm EDT
OSLO (Reuters) – Undetonated explosives were found on an island where a gunman killed at least 10 people at a youth camp near Oslo, Norwegian police said on Friday.
“Explosives were found on the island,” deputy Oslo police chief Sveining Sponheim told reporters. He said a man detained by police was aged 32 and “ethnic Norwegian.”
He said that police expected that the death toll in the shooting was expected to rise from 10. The shooting followed a bomb blast in Oslo, in which seven people were killed.