JOHANNESBURG, South Africa -- Dozens of soldiers were killed as clashes continued for a second day in the South Sudanese capital of Juba, as more than 13,000 civilians took refuge at a U.N. peacekeepersrsquo; base.img src="http://feeds.feedburner.com/~r/latimes/africa/~4/aHSi6WqwLDs" height="1" width="1"/