The South Sudan government says First Vice President Riek Macharis "under house arrest," two days after he was detained, as a former Kenyan premier arrived in Juba to mediate the crisis threatening to end the fragile peace deal between rival factions. "Let me assure you and the people of South Sudan that the situation is normal, the situation is normal and it is under full control," says Michael Makuei Lueth, information minister and government spokesman, at a press conference in the capital, Juba. IMAGES AND SOUNDBITES