Smoke billows from a heavy shelling at the Palestinian refugee camp of Nahr el-Bared, during clashes with fighters from the Fatah Islam militant group, in the Lebanese city of Tripoli, Friday June 1, 2007. Under the cover of artillery barrages, dozens of Lebanese army tanks and armored carriers moved against Islamic militants barricaded in the Palestinian refugee camp in northern Lebanon.
(Photo: AP Photo/Hussein Malla)
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