Immigration officers escorted some family members of the Hong Kong people injured in the German train attack back to Hong Kong yesterday.
The officers accompanied them in Germany to visit the four injured in hospital and meet with medical officers.
The Immigration Department said the four victims will remain in hospital.
Officers will render assistance to them and their family members.
Hong Kong residents in Germany are advised to watch their personal safety and can call the department's 24-hour hotline (852) 1868 for assistance.