Three brothers held in connection with an alleged terror plot at Fort Dix, N.J., may have been smuggled across the southern U.S. border, according to broadcast reports.

Eljvir Duka, left, and Shain Duka seen in an artist’s sketch during a court appearance at the U.S. District Courthouse in Camden, N.J.

Dritan “Anthony” or “Tony” Duka, 28; Shain Duka, 26; and Eljvir “Elvis” Duka, 23, were in the United States illegally.

According to Fox News, “Because the three men entered the United States without inspection, there is no legal record of their entry. A federal law enforcement source said the three entered the United States near Brownsville, Texas, in 1984. They would have been children at the time, ranging in ages from 1 to 6. The source said there is no record of them entering though a regular border crossing, so they are investigating whether they were smuggled into the country.”

A total of six men are being charged at this time, with the others identified as Mohamad Ibrahim Shnewer, 22; Serdar Tatar, 23; Agron Abdullahu, 24. All have been ordered held without bail for a hearing slated for Friday.

The suspects, all foreign-born Muslims, are accused of planning to assault the Army base and slaughter scores of U.S. soldiers with automatic weapons and rocket-propelled grenades.

Prosecutors have called a video clerk an “unsung hero” for tipping off authorities in January 2006 after one of the suspects asked him to transfer a video to DVD that showed 10 men shooting weapons at a firing range and calling for a holy war.

“If we didn’t get that tip,” said U.S. Attorney Christopher Christie, according to Fox. “I couldn’t be sure what would happen.”

“These homegrown terrorists can prove to be as dangerous as any known group, if not more so. They operate under the radar,” Weis said.

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