Iraqi Sunni leaders say they want more seats on the parliamentary committee charged with drafting the country's constitution or they will boycott the process.

A coalition of Sunni organizations said Wednesday they want to increase their current special allotment of 13 seats to 25, strengthening their voice on a key committee that could have a total of some 75 seats. The Sunnis have already been granted 11 extra seats on the committee to make up for their small number of legislators - a result of the parliament election boycott by Sunni voters.

Shi'ite leaders have not responded to the demands.

Meanwhile, insurgent attacks across Iraq Tuesday killed at least 25 people, including three U.S. soldiers.

Some information for this report provided by AP and Reuters.