Meanwhile, in a sweep through West Bank towns, Israeli forces, some disguised as vegetable vendors and others using an alleged terrorist's mother to draw the man out, arrested six Palestinians.
The army said those arrested included a 14-year-old boy allegedly coerced by militants into becoming a suicide bomber and a senior Hamas fugitive who has been on the run for eight years.
Israel security forces were on high alert for Thursday's Yom Kippur, the holiest day of the Jewish calendar, when borders close, streets empty of traffic and Jews fast, pray and ask for forgiveness.
Qureia said the special committee that led the investigation would publish the results, along with a report by the French doctors who treated Arafat.
"French and Palestinian doctors who treated the martyred brother found that medicine could not find the disease which infected Arafat, neither viruses, nor germs, nor AIDS, nor bacteria," Qureia said.
He said the file would remain open for further investigation.
Arafat died in a French hospital on Nov. 11, 2004, after a two-week illness. His wife, Suha, refused an autopsy.
Rumors have swirled that Arafat died of AIDS or was poisoned by Israel. Israel denies the allegation.
Arafat's medical records were. An investigation of these records by independent doctors also was inconclusive.
The records showed that Arafat died of a massive stroke after suffering intestinal inflammation, jaundice and a blood condition.
But the records were inconclusive about the causes of the blood condition, known as disseminated intravascular coagulation, or DIC. The condition has numerous causes ranging from infections to colitis to liver disease.
In one of the West Bank arrests, in the Hebron-area town of Dahariya, troops brought a fugitive's mother to call on him to surrender. When he came out of his hideout, he was forced to strip to show he hadn't strapped explosives to his body.
The Israeli army said Wednesday it had arrested a 14-year-old Palestinian boy who told his interrogators that militants from the Al-Aqsa Martyrs' Brigades — a militant group with ties to Palestinian leader Mahmoud Abbas' Fatah movement — pressured him to carry out a suicide bombing after he quarreled with his father.
The teenager said the militants threatened to kill him and distribute a statement claiming he was a collaborator with Israel if he didn't carry out their orders, the army said.
Jamal Tirawi, an Al Aqsa commander who allegedly recruited the boy, disputed the Israeli account.
At 14, the boy would have been one of the youngest suicide bombers during five years of conflict. Militant groups have increasingly turned to youths to carry out attacks in recent years because teenagers are likely to raise less suspicion with the army.
In the West Bank village of Tsurif, Israeli undercover forces — some disguised as vegetable vendors — on Tuesday arrested Ibrahim Ighnimat, a Hamas militant accused of being involved in suicide bombings and shooting attacks dating back to 1995.
The army has been hunting for Ighnimat, 47, since 1997. The army and the Shin Bet have spent years collecting information about Ighnimat, considered to be the spiritual leader and last link in the Hamas group's Tsurif cell, said Lt. Col. David Kimchi, commander of the operation. For several days before the arrest, troops followed Ighnimat and learned his daily routine, he said.
The "vegetable vendors" were used to get forces into the town — considered to be one of the more hostile in the Hebron area, Kimchi said. Once they had Ighnimat in their sights, the forces informed the other troops about some changes that had to be made in their game-plan.
When the troops arrived at the house, Ighnimat was sitting in the yard, and tried to flee but was arrested almost immediately, Kimchi said, adding that the fugitive had repeatedly evaded arrest in the past.
Ighnimat is linked to a suicide bombing in 1997 in which three Israelis were killed, four shooting attacks and the kidnapping and killing of an Israeli soldier, the army said.
Meanwhile, in Dahariya, a town southwest of Hebron, troops surrounded a house early Wednesday, calling on Hamas fugitive Haitham Battat to surrender. Battat has been wanted for several weeks in connection with a suicide bombing in Beersheba in May.
Troops called on a loudspeaker for Battat to surrender, the army said, and a gunbattle erupted. Bulldozers began demolishing the home, and Battat's mother was brought in to call for him to surrender. Shouting into the loudspeaker, Battat's mother told him she loves him. Five minutes later the fugitive left the house with his hands up. Troops ordered him to strip.
Battat's mother embraced him before he walked over to troops, who gave him white plastic overalls and arrested him. The army said he handed over an assault rifle upon arrest.