Iraqi security forces and pro-government militias took control of large parts of the Tigris River town of Dhuluiya north of Baghdad on Monday from Islamic State fighters, police and army sources said.

The assault, which began on Sunday and ran into Monday, enabled militia fighters and Iraqi army and federal police to break the militants’ siege of the town 70 km (45 miles) north of Baghdad.

Iraq’s Shi’ite-led government, backed by U.S.-led air strikes, has been trying to push back Islamic State since it swept through mainly Sunni Muslim provinces of northern Iraq in June, meeting virtually no resistance. […]