Clash between Kurds, Iraqi Shiites kills 12
Fighting raises worries about whether state can control armed groups
BAGHDAD - Kurdish troops and Iraqi Shiite forces exchanged mortar and machine-gun fire Sunday in a flare-up that killed at least 12 people and raised concerns about the state's ability to control an array of armed militia groups as areas are freed from the Islamic State.
The fighting broke out in Tuz Khurmatu, an ethnically and religiously mixed tinderbox town that is 120 miles north of Baghdad. Both sides blamed ea...