** 200,000 Syrians Flee Aleppo as Rebels, Troops Clash **
Fighting between Syrian troops and rebels in the country's largest city, Aleppo, has forced 200,000 people to flee the area over the past two days.
Valerie Amos said in a statement Sunday the fighting is making it hard for humanitarian agencies to provide displaced residents with urgently needed food, mattresses, blankets, hygiene supplies and drinking water.
Also Sunday, Jordan opened its first official tent camp for refugees from neighboring Syria. Foreign Minister Nasser Judah said Jordan has taken in 142,000 Syrians, with up to 2,000 more arriving each day.
Turkey has been sheltering more than 44,000 Syrians.
Syrian activists said security forces fired tank shells and artillery against rebel positions in Aleppo Sunday.
** Panetta: Violence in Aleppo is Nail in Assad's Coffin**
U.S. Defense Secretary Leon Panetta calls the Syrian military attack on the country's largest city, Aleppo, a nail in President Bashar al-Assad's coffin.
Panetta said during a flight to Tunisia Sunday that what President Assad has been doing to the Syrian people makes it clear his regime has lost all legitimacy and is coming to an end.
The U.S. defense chief flew to Tunis Sunday to begin a five-day trip to Tunisia, Egypt, Israel and Jordan.
Panetta said he commends the Tunisian people on the success of their revolution. He also commended the Tunisian army played what Panetta called a positive role in the transition.
Tunisians, demanding more human rights and better living conditions, forced long-time President Zine El Abidine Ben Ali to flee the country in January 2011. Those protests served as an inspiration for a wave of revolt that spread through the Arab world last year.