Gunmen killed five Shia primary school teachers and a driver in a school in Iskandariya, south of Baghdad today, police said.
"These men were terrorists in police uniform," a spokesman said.
He said the gunmen arrived at the school in two civilian cars, led the teachers and the school driver to a part of the school where no children were present, and shot them.
Sectarian killings are rife in Iraq, where the Shia- and Kurdish-dominated government, backed by US forces, is facing an armed insurgency by Sunni Arabs. But school teachers have rarely been targets for attacks.