Iraqi President Jalal Talabani is pleading for unity, saying it is key to stopping factional fighting that killed nearly 1,100 people in Baghdad last month.
Mr. Talabani said in a statement Wednesday that Iraqis feel "shock, dismay, and anger" at the daily discovery of unidentified bodies in the capital.
President Talabani appealed to all politicians and clerics of every faith to strenuously and clearly condemn these crimes.
He also said Iraq needs a unified government to help end the violence.
Iraqi Prime Minister designate Nouri al-Maliki did not announce his new cabinet Wednesday, as was widely expected.
He said Tuesday the top cabinet positions already have been filled, based on nominations by Iraq's Shi'ite, Sunni Arab, and Kurdish power blocs.
Iraqi police say insurgents killed 15 people Wednesday, including 11 bus passengers near Baquba. A member of the city's police intelligence unit and two of his bodyguards were killed in a separate attack.
In Baghdad, gunmen killed a defense ministry employee. And police say they found 13 bodies, most showing signs of torture.
Some information for this report was provided by AFP, AP and Bloomberg.