The government has identified all the men delivering martyrdom messages in videotapes found in Afghanistan, releasing the name and nationality of the fifth suspected Al Qaeda member Friday.

Attorney General John Ashcroft identified the man as Al Rauf Bin Al Habib Bin Yousef Al-Jiddi, 36, a Canadian citizen born in Tunisia. Ashcroft said the man was identified in part from a suicide letter found in the rubble of the Afghanistan residence of Mohammad Atef, believed to have been Osama bin Laden's military chief. Atef was killed by a U.S. airstrike in November, according to officials.

Ashcroft said the FBI also is searching for an associate of Al-Jiddi, identified as Faker Boussora, 37, also a Canadian citizen born in Tunisia. The two had lived in Canada "for some years," said a Justice Department spokeswoman, but she declined to say where in Canada. The attorney general characterized the men as "extremely dangerous."

Ashcroft credited the Canadian government with helping to identify Al-Jiddi. According to the Canadian Broadcasting Corp. Friday, Al-Jiddi lived in Montreal for several years, although Canadian Prime Minister Jean Chretien said the man no longer was in Canada.

Ashcroft did not say where officials had obtained the grainy photograph of Boussora, though it apparently came from a videotape.  The attorney general also said there was no information about a suicide note from Boussora.

Authorities do not know where the men are, but they are not believed to be in the United States, officials said. Even so, warnings about the men were sent to law enforcement agencies across the country.

"We think that individuals who make suicide videos and write suicide letters are dangerous individuals," Ashcroft said.

The Justice Department last week released videos and photos of five suspected members of Al Qaeda. One of the men was shown cradling a rifle and another, hailing from Yemen, was suspected of being intended for the Sept. 11 suicide attacks.

The government had tentatively identified four of the men as Abd Al-Rahim, Muhammad Sa'id Ali Hasan, Khalid Ibn Muhammad Al-Juhani and Ramzi Binalshibh before identifying the fifth man Friday.

Ashcroft also released "retouched" photographs of the other men who appeared in the videotapes. He said the FBI had manipulated the photographs to show how each individual might disguise himself with a Westernized appearance.

Ashcroft said last week that little was known about any except Binalshibh, a Yemeni who officials say was associated with Sept. 11 hijacker Mohamed Atta.

In the December indictment against Zacarias Moussaoui, Binalshibh was named along with Atta and the 18 other hijackers as an unindicted co-conspirator.

Officials also said they planned to release photographs of the five men showing how they would appear wearing Western-style clothing.

Ashcroft has urged anyone who has seen the men to call the FBI or an American consulate and warned that they are suspected of planning additional attacks against civilians.

Authorities have said the men did not specify what would be attacked, but used anti-American rhetoric and spoke of a hatred of "infidels."

Authorities don't know where the men are or whether they were killed in the bombing raids in Afghanistan. There is no evidence they ever entered the United States; the Atta associate tried to enter the country three times last year but was unsuccessful.

The Associated Press contributed to this report.