monrovia one liberia lead political party call halt announce result tuesday presidential election cite irregularities vote liberty party whose candidate charles brumskine consider front-runner take nobel peace prize winner ellen johnson sirleaf say would consider take legal action national elections commission nec act demand nec originally expect release preliminary result thursday liberty party deeply trouble discovery numerous incidents irregularities fraud occur elections liberty party national chairman benjamin sanvee say statement call nec immediately halt announcements election result nec cooperate request take appropriate legal action say give specific evidence voter fraud unclear kind activity could alter tuesday vote nec spokesman tell reuters unaware liberty party complaint say whether commission believe illegal act occur election day materials include ballot box arrive late locations people struggle find name voter roll witness say far evidence link illicit activity irregularities would taint result election expect mark first democratic transfer power seven decades country haunt civil war end nearly 15 years ago liberia africa old modern republic found free u.s. slave 1847 last democratic power transfer date back 1943. johnson sirleaf africa first elect female president surprise victory 2005 follow post-war transition re-elected 2011 bar seek another term one liberia 's main party call halt election result