VIOLENCE

At Least 18 Killed in Iraq

A tribal chief and a police officer were among 18 people in Iraq found dead after being abducted a few hours earlier by people wearing police uniforms. The execution-style killings come a few days after at least 13 other Iraqis were found shot dead around Baghdad. Sectarian attacks in Iraq have surged in the last few months. An estimated 979 people were killed in violent attacks in October, according the UN—and more than 6,500 civilians have died since January, the highest since 2008.