Acting national police chief Sveinung Sponheim said that the suspected gunman's Internet postings "suggest that he has some political traits directed toward the right, and anti-Muslim views, but whether that was a motivation for the actual act remains to be seen". Police have described Breivik as being a right-wing extremist. Breivik described himself as a conservative nationalist. He has been described as a Christian fundamentalist by news sources. He is reported to have written many posts on the website "document.no", described by "Aftenposten" as "Islam-critical and Israel-friendly". He went to meetings of "Documents venner" (Friends of Document), linked with the website. He is was also once a member of the right-wing Progress Party (FrP) and its youth wing FpU. FpU leader Ove Vanebo said Breivik was active early in the 2000s, but he left the party as his viewpoints became more extreme.