Two men try to extinguish a tire fire Thursday in Sitra, Bahrain, near the site of an opposition rally.Nightly clashes between riot police and protesters continued Thursday night nationwide. Hasan Jamali/AP hide caption

itoggle caption Hasan Jamali/AP

Black smoke billowed from burning tents in Pearl Square in Manama, Bahrain, earlier today (March 16, 2011). Joseph Eid/AFP/Getty Images hide caption

itoggle caption Joseph Eid/AFP/Getty Images

Hassan Issa, in red, the son of one of the people killed today in Bahrain when police broke up a camp of protesters. He says his father, Issa Abdel Hassan was shot and killed by police as they tried to make their way to Pearl Square, which riot police were clearing with teargas, clubs and other weapons. The son said, "I was supposed to be the martyr, not him." Peter Kenyon/NPR hide caption

itoggle caption Peter Kenyon/NPR