UN seeks to expand presence in Sudan as violence intensifiesbr br "The UN is a ship that was not built to stay in the harbor," UN humanitarian chief Tom Fletcher said Monday, urging a dramatic expansion of UN presence in Sudan as violence intensifies in Darfur.br br READ MORE : br Subscribe on our Dailymotion channel and receive all the latest news from the continent. br br Africanews is available in English and French. br Website : www.africanews.