An estimated 270,000 ethnic Rohingya have fled Myanmar's strife-torn Rakhine State to seek refuge in neighboring Bangladesh since violence broke out there two weeks ago, the United Nations said Friday.The Office of the U.N. High Commission for Refugees said that in view of the dramatic increase in the number of refugees, there is a clear need "for urgent action to address the root causes of the recent surge in violence, so that people are no longer compelled to flee and can eventually return home in safety and dignity."The UNHCR said the limited shelter capacity in Bangladesh is already exh…READ FULL ARTICLE