CLEVELAND -- Three Ohioans, who lived in quiet neighborhoods in Toledo, Ohio, were arrested this weekend for allegedly planning a terror attack on military personnel in Iraq and other countries, NewsChannel5 reported.

Two of the men were arrested in Ohio, and the third was picked up overseas and was brought back to Cleveland.

Mohammad Zaki Amawi, 26, Marwan Othman El-Hindi, 42, and Wassim Mazloum, 24, lived in Toledo in the past year, officials said.

The indictment unsealed Tuesday in Cleveland said the attacks were aimed at killing American troops and coalition forces overseas.

The suspects recruited others as early as November 2004 to train for a violent holy war against the United States and its allies in Iraq. The group traveled together to a shooting range to practice shooting guns and studied how to make explosives, the indictment said.

It also alleged that one man, Amawi, twice threatened to kill or inflict bodily harm against President George W. Bush while speaking with others.

Amawi is a citizen of Jordan and the U.S. Othman El-Hindi is a U.S. citizen born in Jordan and Mazloum, came to the U.S. from Lebanon in 2000.

Mazloum operated a car business in Toledo with his brother. The indictment accuses him of offering to use his dealership as a cover for traveling to and from Iraq so that he could learn how to build small explosives using household materials.

The indictment also accused the trio of plotting to create a dummy non-profit organization in order to raise funds for Jihad.

All three men are charged with conspiracy to kill, kidnap, maim, or injure people or damage property in a foreign country; conspiracy to kill U.S. nationals, and harboring or concealing terrorists.

Amawi also is charged with unlawfully importing, manufacturing, distributing or storing explosive materials and with making threats against the president.

He was arraigned Tuesday afternoon in Cleveland and pleaded not guilty to all charges. The other two were to be arraigned in Toledo.

In a news conference in Cleveland Tuesday, Craig Morford, of the U.S. attorney's office, said that this is only the beginning of the investigation, and that more arrests could be on the way.

The U.S. attorney's office also said that ringleader Amawi used DVDs, videos and the Internet to communicate plans for making suicide bomb vests and other activities.

Attorney General Alberto Gonzales says he feels "very, very strong" about the government's case against the three Ohioans.

"This case stands as a reminder of the need for continued vigilance in the war on terrorism," he said at a news conference in Washington.

Gonzales also said that the men accused are alleged to have had the "motivation" and the "means" to carry out their threats.

Gonzalez would not say whether the warrantless wiretaps were used to help in the investigation against the men. The wiretaps have come under criticism from leaders of both major political parties because of worries that they violate frederal laws that protect privacy.

The three men are all currently in jail, and will appear in court next Tuesday for a hearing. If convicted, the suspects could receive up to life in prison.