Tensions run high in Iraq over Kurdish claims to oil-rich-city of Kirkuk

Iraqi lawmakers are to meet Sunday in a special session of parliament aimed at resolving a power-sharing disagreement in Kirkuk, which has blocked legislation approving U.S.-backed provincial elections.

The dispute is emerging as one of the biggest threats to the Shiite-led government's efforts to heal the country's sectarian rifts and prevent a new cycle of violence.