A flotilla of Italian fishermen sailed into the choppy waters off Lampedusa to drop a bouquet of yellow flowers near the spot of a shipwreck to honour more than 100 African migrants drowned.
The search to recover more bodies has been called off for a second day because of the bad weather conditions. Up to 200 migrants are still missing.
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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.