The Norwegian flag is at half-mast outside a hotel where survivors of the July 22 youth camp attack are being reunited with their families in Sundvolden, some 40kms south west of Oslo, on July 24, 2011. The self-confessed author of Norway's attacks that killed at least 93 people and wounded nearly 100 more says he acted alone, police said Sunday, as thousands attended a memorial service for the victims. Anders Behring Breivik, 32, is due to appear in court in Oslo on Monday after telling police that last Friday's bombing and shooting attack was "cruel" but "necessary". AFP PHOTO/JONATHAN NACKSTRAND