Two men from Afghanistan who were in the United States for training at Moody Air Force Base are missing, days before they were scheduled to graduate and return to their country, the base and officials said on Wednesday.

The base said the two men, part of a training program in conjunction with the Afghan Air Force, did not report on Monday for their maintenance duties with the 81st Fighter Squadron. The two arrived in the United States more than a year ago and have been at the air base, in Valdosta, Ga., since February, the base said. No identifying information was released.

The base said the men were screened before their arrival, and had been training alongside American counterparts. The missing men “do not pose any apparent threat,” the base said.

An Air Force spokesman, Lt. Col. Christopher P. Karns, said in a telephone interview that the last contact with the two students was on Friday. They are allowed to leave the base on weekends, and it was assumed they did, he said.