The father of a Norwegian man charged with attacks that killed at least 92 people says he is in shock and only learnt of his son's involvement via online newspapers, a Norwegian daily said.

"I was reading the online newspapers and suddenly I saw his name and picture on the net," the father told the daily Verdens Gang of his son, Anders Behring Breivik. It said the man was interviewed "somewhere in France," where he is a pensioner.

"It was a shock to learn about it. I have not recovered yet," he said. The man is a pensioner who lives in France and said he had had no contact with his son since 1995.