Smoke rises during clashes between Iraqi security forces and tribal fighters and Islamic State group militants near al-Houz bridge on the Euphrates river in Ramadi, 70 miles (115 kilometers) west of Baghdad, Iraq, Friday, April 24, 2015. Iraqi security forces recaptured a key bridge from Islamic militants in the capital of western Anbar on Friday, said an Iraqi security official, as top Shiite cleric renewed calls for national unity among political groups in the face of Islamic militant group. (AP Photo)