More than 300,000 killed in decade of Syrian conflict, UN says

More than 300,000 civilians were killed in one decade in Syria, the “highest estimate yet of conflict-related deaths” in a civil war that started in 2011, according to the United Nations.More than 300,000 civilians were killed in one decade in Syria, the “highest estimate yet of conflict-related deaths” in a civil war that started in 2011, according to the United Nations.