| Citigroup plunges on uncertainty [23 mins][Kansas] Shares in Citigroup, one of the biggest banks in the US, fell sharply on Friday amid ongoing uncertainty over its future. | Congo demands stronger mandate for UN troops (AFP) [57 mins] AFP - Congo demanded a stronger mandate for UN troops in the conflict-torn east Friday, while residents of a squalid refugee camp said government soldiers killed a woman during a looting spree. |