BAGHDAD, Iraq – Prime Minister Allawi announced plans yesterday to extend a cash-for-weapons program for Shiite fighters in Baghdad’s Sadr City to cities nationwide in an attempt to disarm the country.

In Fallujah, the focal point of the Sunni rebellion, hopes that peace talks could resume there quickly were dashed when the city’s chief negotiator, Sheik Khaled al-Jumeili, ruled out restarting talks soon despite his release yesterday from American custody.

American and Iraqi forces have vowed to retake the city by force if negotiations are not successful, and the American military announced late yesterday that it had destroyed several safe houses and weapons storage sites linked to terror mastermind Abu Musab al-Zarqawi.

The military statement did not specify whether the attacks were air strikes, although such attacks have been launched frequently against the insurgent stronghold in recent weeks.

“I’m negotiating on behalf of Fallujah people – civilians, kids, women – who have no power except by being represented by somebody,” Mr. al-Jumeili told Al-Arabiya TV. “Since the situation has gotten to this, each can go wherever they want and we don’t need to talk about negotiations.”

Mr. al-Jumeili was detained Friday a day after talks broke down over the government’s demand that the city hand over Mr. al-Zarqawi, who Fallujah’s clerics claim isn’t there.

Fallujah, considered a major insurgent stronghold, has been under a wave of aerial and ground attacks by American forces in a bid to root out Mr. al-Zarqawi and his group, Tawhid and Jihad.

Tawhid and Jihad has claimed responsibility for numerous beheadings and suicide bombings, including two attacks on Baghdad’s Green Zone last week that killed six, including four American civilians.

The announcement of plans to extend the weapons-for-cash program came as fresh violence erupted in Baghdad and Mosul. Multiple car bombs over a two-day period claimed at least 12 lives, and a terrorist group, the Islamic Army in Iraq, claimed to have beheaded two Macedonian hostages.

The government launched the program in Sadr City as part of a deal to end weeks of fighting in the Shiite district of Baghdad and has twice extended the deadline for fighters to hand in their weapons.

Yesterday, Mr. Allawi told the National Council, a government oversight body, that the program is going so well he wants to extend it to the rest of Iraq.

“The government is determined to disarm cities and neighborhoods because our forces are now ready to fight terrorists and there’s no justification for people to keep weapons at home,” Mr. Allawi said.

During his appearance before the National Council, Mr. Allawi said his government was still extending an “olive branch” to Fallujah but added that “we shall not be lenient in regard to the question of maintaining security and granting security to every Iraqi.”

If negotiations fail to restore government control to Fallujah, American and Iraqi military leaders are expected to launch an all-out assault on the city. Fallujah fell under insurgent control after the Marines lifted their siege of the city in April.

The British defense secretary, Geoff Hoon, told the House of Commons that his government was considering a request by Washington to redeploy some British troops from southern Iraq to free American soldiers for “further operations elsewhere in Iraq.”

In Baghdad, a car bomb exploded late Sunday near a police patrol in the Jadiriyah district, killing six people, including three police officers, and wounding 26 others. The blast hit a cafe near the Australian Embassy, although there were no Australian casualties.