Prosecutors are continuing to question the man who admits killing 77 people in two attacks in Norway last July about his first contacts with militant nationalists.
Anders Behring Breivik told the court in Oslo on Wednesday that he met a Serbian nationalist when he travelled to Liberia in 2001, but he refused to give more details.
The court was also shown an excerpt from Breivik's 1500-page manifesto in which he says he had contacts with "Serbian cultural conservatives".
In it, Breivik wrote that they did a complete screening of him. He claims the group was considering "several hundred" individuals throughout Europe for a training course.
He told the prosecution to ridicule him less as he was being questioned about the far-right network he says he belonged to.