(AP) American reporter Jill Carroll's three-month hostage ordeal ended Thursday when she was left on a Baghdad street in front of a Sunni political party office. She appeared composed and eager to talk about her 82 days held captive in a tiny room.

"It's important people know that I was not harmed," she said.

Wearing a green Islamic head scarf and a gray Iraqi robe, Carroll was dropped off at midday near an office of the Iraqi Islamic Party. She walked inside and was then driven 20 minutes to party headquarters, where she called her family and gave an interview to Baghdad Television before being handed over to U.S. authorities.

The 28-year-old freelancer for The Christian Science Monitor said her kidnappers confined her to a small, soundproof room with frosted windows but treated her well. Although her captors issued televised threats to kill Carroll if American forces did not release women prisoners, she said: "They never said they would hit me, never threatened me in any way."

Carroll said she did not know who her kidnappers were, where she was held or why she was set free. Shortly before she was released, the journalist said, "They just came to me and said, 'OK, we're letting you go now.' That's all."

The U.S. ambassador said there was no ransom paid by the American embassy, but his remarks left open the question of whether "arrangements" were made by others. None of the kidnappers was captured, he said.

In the interview, Carroll seemed well and animated and spoke in a strong voice. She frequently tucked her hair under her headscarf, and appeared excited to be free nearly three months after she was ambushed and her translator killed.

Carroll's father Jim, standing on the porch of his home in Chapel Hill, N.C., said he was asleep when the phone rang at about 6 a.m. "Hi, Dad. This is Jill. I'm released," the voice on the other end said.

"Obviously we are thrilled and relieved that she has been released," he said.

Near Chicago, the reporter's mother, Mary Beth Carroll, said she was trying to figure out travel plans so she could hug her daughter again. "We're thrilled," she told The Associated Press.

Carroll's release came a day after her twin, Katie, pleaded on Arab television for her freedom. On Thursday, the sisters also spoke by phone.

"She called me because she remembered my number. I was dreaming that this would be the way I'd find out _ that she'd call me in the middle of the night like this," Katie said, according to the Monitor. "She sounded great. I just want to thank everyone who's prayed and given us support through this time, and we're obviously looking forward to some private time with Jill."

President Bush said he rejoiced at the news. "I'm just really grateful she was released," he said. He thanked those "who worked so hard for her release. I'm glad she's alive."

With Carroll's release there are no more foreign journalists held hostage in Iraq, but two Iraqi journalists kidnapped on Feb. 1 are still being held.

Carroll was abducted Jan. 7 in Baghdad's western Adil neighborhood while going to interview Sunni Arab politician Adnan al-Dulaimi. Her translator was killed in the attack about 300 yards from al-Dulaimi's office.

About 12:15 p.m. Thursday in west Baghdad's Amiriyah neighborhood, Carroll was dropped near a branch office of the Iraqi Islamic Party. Carroll walked into the office, carrying a letter in Arabic from her kidnappers instructing the party to help her.

She "introduced herself as Jill Carroll ... and gave us a written letter in Arabic that asked the Islamic Party help her," Alaa Maki, a party member, told reporters.

Carroll was then taken by an armored car to the party's headquarters, where she was interviewed by the party-owned Baghdad Television and given a copy of the Quran, the Islamic holy book, that appeared to be covered in gold leaf.

During her captivity, Carroll said, she was allowed only on one occasion to read a newspaper and watch television, and was largely unaware of what was happening in the outside world.

"I was kept in a very good, small safe place, a safe room, nice furniture," she said, adding that she was given clothing and plenty of food. "I was allowed to take showers, go to the bathroom when I wanted," she said. They "never hit me, never even threatened to hit me.

"I thought I was not free. It was difficult because I didn't know what would happen to me," she told the Baghdad Television interviewer.

Her face seemed rounder, perhaps because of months without exercise. The Washington Post reported her saying that she had eaten even when she was not hungry rather than give offense by turning down meals.

Carroll emphasized that she had not been harmed. "It's important people know that _ that I was not harmed."

Her comments Thursday were a marked contrast to videotapes released by the kidnappers to Arab television stations.

Carroll wept in a Jan. 30 tape on Al-Jazeera television, and the voiceover of the video said she appealed for authorities to free all women prisoners in Iraq to help win her release.

Ten days later, in a video dated Feb. 2 and aired by a private Kuwaiti TV channel, Carroll spoke in a strong voice, saying she had sent a letter to prove she was alive and now was appearing on television for the same purpose.

"I am here. I am fine. Please just do whatever they want, give them whatever they want as quickly as possible. There is a very short time. Please do it fast. That's all."

Her captors, calling themselves the Revenge Brigades, had demanded the release of all women detainees in Iraq by Feb. 26 and said Carroll would be killed if that didn't happen.

U.S. Ambassador Zalmay Khalilzad made an unusual appearance at Thursday's weekly American military briefing and told reporters he learned of Carroll's release about 1 p.m.

"No U.S. person entered into any arrangements with anyone. By U.S. person I mean the United States mission," Khalilzad said.

He also said there was no connection between the recent release of several female Iraqi detainees and Carroll's freedom.

"What we did before had no connection with Jill Carroll," Khalilzad said. "We still have a few female detainees _ four _ and that's all I can say on that."

German authorities have arrested a man who is accused of trying to extort $2 million from the Monitor by promising to win Carroll's freedom.

The Monitor's editor, Richard Bergenheim, said no money had been exchanged for Carroll's release. "We simply know she was dropped off at the Iraqi Islamic Party headquarters," he said.

Tariq al-Hashimi, leader of the Iraqi Islamic Party, also denied knowledge of a ransom payoff or his party's involvement in negotiating Carroll's release.

"The Iraqi Islamic Party did not take part in this. There have been no contacts with anybody. We don't know whether the newspaper paid a ransom or not. Our role was clear in appealing for her release."

Carroll is the fourth Western hostage to be freed in eight days. On March 23, U.S. and British soldiers freed Briton Norman Kember, 74, and Canadians James Loney, 41, and Harmeet Singh Sooden, 32, from a house west of Baghdad. But a fourth member of the Christian Peacemakers Teams group held hostage, American Tom Fox, was killed earlier.

Thirty-nine journalists have been kidnapped in Iraq since April 2004, when insurgents began targeting the press, said Ann Cooper, the executive director of the New York-based Committee to Protect Journalists. Six of them were killed.

"As journalists are being kidnapped, detained and killed, it becomes exceedingly hard for them to do their job in Iraq," Cooper said, "and it is we, the general public, who lose from it."

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Associated Press writers Sinan Salaheddin and Qassim Abdul-Zahra contributed to this report from Baghdad.