Ireland's Michael McKillop wins the Men's 800m in 1.57:22, setting a new world record. Mohamed Charmi of Tunisia came second and Brad Scott of Australia came third.
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Coal's share of the power mix had fallen to 7%, while wind climbed to new highs to provide 15% of the country's electricity.
State Department spokeswoman Heather Nauert said Pence "was ready to take this opportunity."
Opposition activists said government forces have brought in more reinforcements in recent days.