A survivor of Norway's island camp shooting last summer arrives for the trial of the accused killer.

Vegard Groslie Wennesland anticipates the 10-week trial will be difficult for those who were on Utoeya Island when 69 people were gunned down.

(SOUNDBITE)(English) UTOEYA SURVIVOR VEGARD GROSLIE WENNESLAND SAYING:

"I haven't seen him before. I haven't been to the court meetings before but I am sure it will be okay. But it is tough. Last time I saw him in person, I saw him shoot and kill my friends. So it is tough but it is also important to get through it."

The accused, 33-year-old Anders Behring Breivik, arrived at the Oslo courthouse earlier in the day.

Wennesland was unsure how he would react to the man who has admitted to the shooting and to bombing a government building on July 22.

(SOUNDBITE)(English) UTOEYA SURVIVOR VEGARD GROSLIE WENNESLAND SAYING:

"It is hard to know how to but I think I have done as good as I can. I have talked to my lawyers, I have talked to my psychologists, talked to friends, family... And I will use them for support but to be honest and do not think anyone knows how they will react. Because we have not seen anything like this before. But hopefully we will use each other as friends and family and we will get through it."

Another man said he survived the shooting by running through the woods and into the water.

(SOUNDBITE) (English) UTOEYA SURVIVOR, BJOERN IHLER, SAYING:

"I think it is very important that the world sees this and sees it for what it is. It is a tragedy that is founded on political views that are very common in the rest of the world as well and we have to fight that and we have to fight extremist actions like this."

Breivik has called the attacks punishment for "traitors" whose pro-immigration policies were adulterating Norwegian blood.

Two separate tests offer conflicting conclusions about Breivik's sanity, and resolving them could be the five-judge panel's major decision.

Lindsey Parietti, Reuters