It has been revealed one of the Jordanian nationals who attempted to break into Marine Corps Base Quantico illegally crossed the border into the United States from Mexico in May and was released by Customs and Border Patrol agents. 

His alleged accomplice, also a Jordanian national, was found to have overstayed his student visa. Sources told the New York Post that the military did not disclose the attempted breach for weeks to rank and file Marines on base.  

According to Fox News' Griff Jenkins, multiple sources at the Department of Homeland Security told the outlet that one Jordanian national, whose identity has not been made public, entered the United States in April in the San Diego sector and was released after being given a notice to appear.  

Sources noted that at the time, border patrol agents waived him through because "there was no initial derogatory information found." 

The second Jordanian national, whose identity has also been kept private, obtained an F1 student visa, but never returned to his home country after it expired. 

As Jenkins reports, both men are still in Immigrations and Customs Enforcement custody awaiting deportation proceedings. 

The incident in question took place on May 3 at the base, which is located in Virginia. The two men allegedly approached the Fuller Road Gate in a box truck, where they were stopped to be screened after claiming to work for Amazon contractors. They then attempted to ram their vehicle through the gate but were thwarted by military personnel. 

It wasn't until two weeks later that most Marines at the base were informed about the incident.  

"The unauthorized access attempt was reported immediately to required military officials," a spokesperson said. "In any case determined to be an immediate threat to the base or its population, mass notification and other means are always used to notify all who work and live on Marine Corps Base Quantico." 

Authorities have not been able to confirm reports suggesting the attempted infiltration was terror-related, noting that no weapons were uncovered in the truck. Prior to the report from Jenkins have suggested that that it was a possible “dry run” of an attack.