LONDON, Aug 18 - WikiLeaks founder Julian Assange, who has spent over two years inside Ecuador's London embassy to avoid extradition to Sweden, said on Monday he planned to leave the building "soon", without giving further details. Britain's Sky News, part owned by Rupert Murdoch's 21st Century Fox, had earlier reported that Assange was considering leaving the embassy due to deteriorating health. "I am leaving the embassy soon ... but perhaps not for the reasons that Murdoch press and Sky news are saying at the moment," he told reporters at the embassy in central London, before refusing to clarify his comments. Asked about his health, Assange said anyone would be affected by spending two years in a building with no outside areas or direct sunlight, a complaint he has made several times before.