BAGHDAD, Iraq (AP) -- Gunmen shot and killed five police officers at a checkpoint north of Baghdad on Monday, and six vehicle bombs exploded in the capital, leaving another five people dead and wounding more than 40.
Preliminary results released Monday from ballots cast in early voting by expatriate Iraqis, soldiers, hospital patients and prisoners showed a coalition of Kurdish parties and the main Shiite religious bloc each taking about a third of the vote in the parliamentary elections.
At least 19 people were killed across Iraq on Monday, a day after bloodshed claimed 18 lives, part of an increase in violence since a relative lull in attacks around the Dec. 15 vote.
A suicide car bomber slammed into a police patrol in the capital, leaving three dead, officials said, and a suicide motorcycle bomber rammed into a Shiite funeral ceremony, killing at least two people and wounding 26, said Maj. Falah Mohamadawi of the Interior Ministry.
Four other car bombs killed at least two people and wounded 15, officials said.
Gunmen killed five officers and wounded four at a police checkpoint 30 miles north of Baghdad, a morgue official in Baqouba said.
Partial results already released from voting in Iraq showed the United Iraqi Alliance, a religious Shiite coalition, with a large lead. Those results have been attacked by Sunni Arab and secular Shiite parties, which charge the election was tainted by fraud and other irregularities.
The Alliance, headed by the cleric Abdul-Aziz al-Hakim, denies there was any fraud and is urging Iraqis to accept the results as it tries to form a "national unity" government drawing people from all communities.
Iraqi President Jalal Talabani, a member of the Kurdish minority, sought to calm tensions Sunday, saying all factions will have a role in the new government.
The election complaints demonstrate the difficulty Iraqi parties will face in forming a government after final election results are released in early January.
About 1,500 complaints have been lodged, including at least 35 that the Iraqi election commission said could be serious enough to change results in some areas.
The expatriate results released by the Independent Electoral Commission of Iraq showed the Kurdistan Coalition List with 36.5 percent of the vote and the Shiite United Iraqi Alliance winning 30 percent. Former Shiite Prime Minister Ayad Allawi's secular Iraqi National List garnered 11 percent and the main Sunni Arab Iraqi Accordance Front took nearly 5 percent. Smaller parties split the remainder.
The IECI said that a total of 482,450 valid votes were cast in 15 countries and in polling stations set up on Dec. 12 for soldiers, patients and detainees.
It added that 31,000 expatriate votes were being reviewed and said there were reports of fraud at three polling centers in Istanbul, Turkey. It did not say if the ballots in Turkey were among those under review.
There were 15 million eligible voters in Iraq, and 70 percent cast ballots in the Dec. 15 elections. The expatriate and early election votes will be added to a national total and help elect 45 of the parliament's 275 members.
Iraqis do not vote for individual candidates, but instead for lists -- or tickets -- that compete for seats in each of the 18 provinces. This province-by-province voting will determine 230 of the seats. The remaining 45 will be decided nationwide.
In Karbala, 50 miles south of Baghdad, about 3,000 Shiites demonstrated in favor of the current government headed by outgoing Prime Minister Ibrahim al-Jaafari, an Islamist Shiite loyal to the clergy. Demonstrators chanted: "No for terrorism, yes for Islam."
The Sunni Iraqi Accordance Front, meanwhile, denied reports it has asked the United Iraqi Alliance to give it 10 seats of the religious Shiite coalition's share in parliament.
Ukrainian President Viktor Yushchenko paid an unannounced one-day visit to Iraq on Monday amid the pullout of his country's remaining 867 troops, his office said. All are due home by Dec. 30.
Al-Qaida in Iraq posted a statement dated Sunday on an Islamic Web site, claiming it had killed four people who work at the Green Zone. Three were said to be Iraqi sisters. No other details were given and the statement's authenticity could not be verified.
In other violence:
-- Gunmen raided a house in southern Baghdad on Monday, killing three people, police Capt. Qassim Hussein said. Gunmen attacked the house again when police arrived to remove the bodies, wounding two officers, police said.
-- Gunmen in Baghdad killed a civilian driving his children to school and a professor in separate shootings, police and a hospital official said.
-- Gunmen abducted a Sunni police colonel in Diyala province who was a member of a Sunni political list in the parliamentary elections, said a politician on the list, Dr. Abdulalh Al-Jubori. Also in Diyala, a car bomb targeted the governor, killing a body guard, and gunmen killed a member of Diyala city council, authorities said.
-- Attackers blew up an oil pipeline south of Samara, 60 miles north of Baghdad, Sunday night, police Capt. Mohammed Hasan said. The pipeline has been a frequent target of insurgents, he said.