The country's biggest Sunni Arab political group, the Iraqi Islamic Party, called for an end to U.S. and Iraqi military operations in mostly Sunni Anbar province, saying they "could abort the political process" by discouraging Sunnis there from voting.
U.S. and Iraqi forces have launched an operation in Anbar to clear insurgents from strongholds near the Syrian border.
Elsewhere, Maj. Gen. Mahdi Sabyh Ibrahim announced Saturday that 310 people had been arrested in Diyala province, northeast of Baghdad, after a series of car bombings, ambushes and other acts of violence.
"This act clearly indicates that (government officials) want to hinder the next elections and put obstacles in front of the Sunnis to prevent them from participating," said the Iraqi Islamic Party.
Another Sunni Muslim politician who claims to have contacts with insurgent groups said Saturday that some of its members will run next month, and he gave their demands and conditions to start peace talks with U.S. forces.
"The resistance should have an active role to help Iraq get out of its crisis," said the former electricity minister Ayham al-Samarie.
Before al-Samarie spoke, a statement was distributed in his house that allegedly included the resistance's conditions to start peace talks, including a halt to all military operations, the release of all detainees, the withdrawal of foreign troops from cities and setting a timetable for foreign troops to leave.
U.S. officials have rejected such conditions in the past.
