Federal officials have arrested two Al Qaeda terror suspects in the U.S. with documents in their possession about how to poison the country's water supplies, Fox News has learned.
The first case involves James Ujaama, 36, who surrendered to the FBI last week in Denver. Sources say they found documents about water poisoning among several other terrorism-related documents in his Denver residence.
Sources say the government has additional evidence that prior to Sept. 11 James Ujaama acted as a courier delivering laptop computers to the Taliban. Federal agents seized two computers and two floppy disks from the house where James Ujaama had been staying when he was arrested as a material witness to terrorist activity, his brother said.
James Ujaama's brother is Mustafa Ujaama, the founder of the now-closed Dar-us-Salaam mosque in Seattle. The FBI has been investigating activities and officials from the former mosque for several months.
Investigators believe officials and members of the mosque were trying to establish a terrorist training camp in Bly, Ore., Fox News has confirmed. Investigators say there is evidence that Mustafa Ujaama visited Bly to check it out as a possible facility location.
The Ujaama brothers are also known to have helped establish several Web sites for radical Islamic clerics worldwide.
Another former member of the mosque is also now in custody and suspected of plotting terrorist attacks. His name is Semi Osman and he too is accused of having documents about poisoning water supplies in his possession when he was arrested.
Sources say the Ujaama brothers and Osman are all tied to a prominent radical Muslim cleric in London named Sheikh Abu Hamza Al-Masri. Al-Masri is a one-eyed mullah who is often seen preaching at Finsbury Park's North London Central Mosque and is wanted in Yemen on terrorism charges.
Investigators say they have evidence indicating that Al-Masri supplied the information about poisoning water supplies to both James Ujaama and Semi Osman.
Furthermore, sources say Al-Masri's Web site was designed by the Ujaama brothers.
James Ujaama was arrested Monday at his grandmother's home. Mustafa Ujaama said he did not know what was on the disks that were taken from the home. One of the computers belonged to Mustafa Ujaama and the other was his son's, he said.
FBI spokesman John Lipka confirmed that agents went to the grandmother's house but would not say why. "We are in furtherance of an active investigation," he said.
Holding a person as a material witness — someone believed to have important information — allows federal authorities to keep him in custody indefinitely.
Federal authorities speaking on condition of anonymity have said authorities believe James Ujaama took computer equipment to an Al Qaeda terrorist camp in Afghanistan. They said authorities also were investigating whether James Ujaama trained at the camp.
Earlier news reports said James Ujaama was taken to Virginia after his arrest, but his lawyer, Daniel J. Sears, said he was jailed in Denver. Justice officials have refused to confirm where he was being held.
Sears said James Ujaama had not been charged with any crime. He said a hearing has been scheduled to review the legality of the detention, but he could not say where or when. He said his client is outspoken and has publicly disagreed with the government on Middle East issues.
"I hope we have not advanced to the point in this country where we are jailing people because the government may disagree with their beliefs," Sears said.
Agents arrived at the home at about 5 p.m. and spent about two hours inside. Mustafa Ujaama said they had a warrant.
The brothers moved to Denver this month from Seattle. Mustafa Ujaama was detained briefly on Monday when his brother was arrested.
Their aunt, Robin Thompson, stood outside the home during the search.
"They could have done this in Seattle. We are Americans. I don't know why they're doing this," she said.
The brothers were born James Ernest Thompson and Jon Thompson and grew up in Seattle. Some community leaders there have credited them with helping to rid their poor, black neighborhood of drugs and prostitution by recruiting former gang members and others into the Dar-us-Salaam mosque.
The Associated Press contributed to this report.
Carl Cameron currently serves as Fox News Channel's (FNC) Washington-based chief political correspondent. He joined FNC in 1996 as a correspondent.