Images from inside the military prison at Guantanamo Bay give an insight into the heavy-handed tactics the United States is using to force-feed prisoners.
With 104 of the 166 prisoners in the US prison beginning a hunger strike in February in protest at conditions, the force-feeding programme has been under the spotlight.
The images, released by the US, show the room where inmates are strapped into a chair so they can be fed through a straw inserted through their nose into their stomach in a procedure called "enteral feeding".
Inmates are force-fed under only certain conditions.
If they refuse nine successive meals or if their body weight drops significantly, they are offered a twice-daily can of a nutritional supplement. If they refuse that, guards shackle them into the chair by their arms, head and feet, and a nurse inserts the tube up the nose, down the back of the throat and into the stomach.