A Defense Ministry email to more than 250 Afghans who are eligible for relocation and still remain in Afghanistan was mistakenly copied to all applicants Monday instead of blind copied. British media reports said the people whose email addresses were distributed included some individuals who are in hiding from the Taliban.

“It is an unacceptable level of service that has let down the thousands of members of the armed forces and veterans. On behalf of the Ministry of Defense, I apologize,” Defense Minister Ben Wallace told Parliament.