LIndsey Vonn of the US competes during the women's super-G at the Alpine Skiing World Championships in Garmisch-Partenkirchen, Germany, on Feb. 8. Challenged by a head injury during training in Austria last week, Ms. Vonn finished 7th. Alessandro Trovati/AP
Julia Mancuso of the US competes on her way to clinch the silver medal in the women's super-G on Feb. 8. Alessandro Trovati/AP
Austria's Elisabeth Goergl speeds down the course on her way to win the women's super-G on Feb. 8. Alessandro Trovati/AP
Elisabeth Goergl (c.), winner of the women's super-G race, celebrates on the podium with silver medalist Julia Mancuso (l.) and bronze medal winner Maria Riesch of Germany on Feb. 8. Matthias Schrader/AP
Silver medal winner Julia Mancuso poses with her super-G silver medal during the medal ceremony on Feb. 8. Matthias Schrader/AP
Croatia's Ivica Kostelic speeds down the course during the men's super-G on Feb. 9. Michael Probst/AP
Austria's Hannes Reichelt looks at the score board after crossing the finish line during the men's super-G on Feb. 9. Matthias Schrader/AP
Italy's Christof Innerhofer races in the men's super-G on Feb. 9. Michael Probst/AP
Winner Christof Innerhofer (c.) celebrates on the podium with second-placed Hannes Reichelt (l.) and third-placed Ivica Kostelic after the men's super-G on Feb. 9. Kerstin Joensson/AP
Hannes Reichelt celebrates during the flower ceremony after the men's super-G on Feb. 9. Matthias Schrader/AP
An outburst of violence in recent days between the Dinka and the Nuer in Sudan could portend civil war in the country, officials warned Wednesday. President Salva Kiir accuses rival Riek Macharf of sparking the violence, but says he is willing to begin a dialogue.
South Sudan's army said it had lost control of the flashpoint town of Bor on Wednesday, its first acknowledged reversal in three days of clashes between rival groups of soldiers that have triggered warnings of a slide into civil war.