Members of a special police unit react after a gunman with an automatic weapon is overwhelmed on street after he fired shots at the U.S. embassy, in Sarajevo October 28, 2011. The gunman opened fire at the United States embassy in the Bosnian capital Sarajevo on Friday and police rushed to the scene, a Reuters witness said. A Reuters photographer said police were trying to surround the gunman, who was armed with a Kalashnikov rifle. REUTERS/Danilo Krstanovic (BOSNIA AND HERZEGOVINA - Tags: CRIME LAW POLITICS CIVIL UNREST)