Greater Manchester Police (GMP) said specialist officers made the latest discovery two weeks after the men were first reported missing on July 21. Search teams have been combing the remains of the mill since the first victims were found on July 23. Det Supt Lewis Hughes, GMP’s victim identification officer, said: “I speak for everyone involved in this operation when I say that our thoughts are with the possible family members in Vietnam. “Specially trained officers have been in direct contact with them and are continuing to liaise with partner agencies to ensure they are fully informed and supported.” Detectives are investigating what led to the massive fire at the Bismark House Mill on May 7, including the suggestion that part of the building was being used as an illegal cannabis factory. Subscribe to First Edition, our free daily newsletter – every morning at 7am. BST Hughes said: “At the scene, extensive search and recovery work is continuing to ensure that any further remains are respectfully recovered. Meanwhile, the investigation team is previously following several lines of inquiry regarding the fire and activities at the mill. Any criminal offenses identified as part of their investigation will be dealt with promptly and appropriately. “Anyone with information that may help us should contact Greater Manchester Police or Crimestoppers, anonymously.” The fire took four days to extinguish and authorities initially believed that no one was inside the building. Firefighters did not enter at the time due to concerns about its structural stability. Leon Parkes, the assistant chief fire officer for Greater Manchester Fire and Rescue, said firefighters followed the correct procedures but there would be a review of the incident and how it was handled.