The footage showed a dark stain spread down 71-year-old South Sudan president Salva Kiir's grey trousers as he stood for the national anthem at a road commissioning event.
Factory growth in China - the second largest oil consumer - slowed in late 2013, although the purchasing managers' indexes published by the government and HSBC remained above 50 for December, indicating business activity is still expanding.
The UN announced it was trying to rush more peacekeeping forces to landlocked, impoverished South Sudan as foreign powers urged both sides to stop fighting, fearing for the stability of an already fragile region of Africa.