Iraq's foreign ministry has accused Turkey of "intensively shelling" northern Iraq this week.
The ministry said in a statement on Saturday that it had handed the Turkish envoy in Baghdad an official protest letter.
The statement said the shelling caused "huge damage" in an area between Dohuk and Erbil, 350km north of Baghdad.
"This attack caused wide fires and huge damage in the area and made citizens fearful," the foreign ministry statement said, without precisely identifying the damage.
A ministry spokesman said the shelling took place over three hours late on Wednesday and early Thursday.
Plea for talks
Iraq's foreign ministry called for talks between the two governments.
"Such an action could affect the confidence between both countries and affect the friendly atmosphere between both governments," the Iraqi statement said.
The ministry also reiterated the government's opposition to the presence on its territory of the separatist Kurdistan Workers' Party, also known as PKK, and said it considers the rebel group to be illegal.
"Iraq would like to take this opportunity to declare its resolve to cooperate with Turkish authorities to allay Turkey's legitimate fears through a constructive dialogue and positive co-operation," said the statement
Turkey has been building up its forces along the border with Iraq, and its leaders are debating whether to stage a major incursion to pursue PKK rebels who cross over from bases in Iraq to attack Turkish targets.
Also on Saturday, thousands of people took to the streets of the country's mainly Kurdish southeast on Saturday in a state-sponsored demonstration against separatist violence.
The protesters, mainly state-paid village guards, civil servants and schoolchildren, waved Turkish flags and chanted anti-guerrilla slogans in the remote hillside town of Sirnak, overlooking the Iraqi border some 50km away.
Iraq violence
Meanwhile, the tide of violence remained unabated in Iraq. On Saturday, a suicide truck bomber killed 12 soldiers and wounded 30 more in an attack on an Iraqi army checkpoint south of Baghdad, police said.
The incident happened on Saturday in the Jurf al-Sakhar neighbourhood of the predominantly Shia city of Hilla, 100km south of the capital.
Earlier, an apparent rocket attack at a US-run detention facility in southern Iraq killed at least six detainees and wounded 50, the military said.
No American casualties were reported.
Detainees killed
The attack was launched against the internment facility at Camp Bucca, the military said in a brief statement. Lieutenant-Colonel Christopher Garver, a military spokesman in Baghdad, said the centre appeared to have been hit by rockets.
The US military oversees some 21,000 inmates at Camp Bucca in southern Iraq and Camp Cropper, near the Baghdad airport.
In Baghdad, sporadic clashes erupted for nearly two hours in a dangerous west Baghdad neighbourhood.
The fighting began when Iraqi army patrols came under attack in the predominantly Sunni neighbourhood of Amil and returned fire, an Iraqi army official said.
The official said four civilians were wounded, but no other casualties were reported and the situation was brought under control after the US military provided support.
Elsewhere in Baghdad, a parked car bomb struck a convoy of Iraqi police commandos and fighters opened fire on police on a foot patrol in a mostly Shia neighbourhood, police said.
Also on Saturday, a US soldier was killed by small-arms fire north of Baghdad, the US military said.
One Task Force Lightning soldier died as a result of injuries sustained during operations in Diyala province.