Two Afghan military officers who were in Massachusetts for training went missing over the weekend after not showing up for a flight at Logan Airport.
The two were transported to the airport on Saturday to catch a flight home, but the plane left without them on it.
"It's embarrassing," Northeastern University associate professor Max Abrahms said. "I want to know the identity of these people, their backgrounds and what they were trying to do."
The two were guests at a United States Department of Defense training exercise that took place at Camp Edwards on Cape Cod last week.
More than 200 service members from five countries attended.
In 2014, three Afghan officers attending the same type of training program walked away from a group outing at the Cape Cod Mall and were captured days later at the United States-Canada border in Niagara Falls.
The Department of Defense said that they are unable to verify the report, despite confirmation from the Massachusetts National Guard.