Sean McAllister, a filmmaker, was detained by the Syrian authorities while working undercover on a report for the UK's Channel 4 news last week.
McAllister says that he was seized from a Damascus cafe along with Jihad, an activist, blindfoled, and driven to a prison in the central part of the city.
I was placed on a seat in an empty room on my own. Outside I could hear beatings in a neighbouring room. People being slapped and wailing painfully as they were being whacked," he said.
McAllister was being held along with activists who had been detained by the authorities.
When they are taken out of the cell they are blindfolded and their hands are tied. They are taken down the corridor to this, well, they don't know where they are going, the whole thing, having been blindfolded for a little bit, the disorientation, of never seeing and the person you keep meeting is just a voice that you hear and you have to see him on one knee, you are forced to kneel on one knee. It’s a very awkward position to be in for maybe an hour of interrogation.
"If they are not satisfied with the info, you would be brought out at three in the morning into the torture chamber and whipped with the cable or there was like a hundred leather belts like a big ball of leather belts in the corner."
"I'd seen these things that they'd use, because the cable was next to my bed one night. They'd manufactured the end of the cable to become like a proper handle and the cable was so solid that it had formed its arc and the arc as it hit someone's back.
"It was so heavy, it was so awful, it must have broken bones and the howling, the noise of a human being hit with that is something that just, you know, you shiver and shake. You hear a sound that you've never heard before. I've never heard before. And I've seen people dead. And I've seen people dying. And I've seen people decapitated, but this sound hearing a man cry, is just like, awful, there's nothing to compare it with."
McAllister was also particularly by the bravery of those detained with him.
I didn't realise exactly what those guys are risking until I went into that experience and my God those guys are brave. Too brave."
He has said that he does not know what became of his contact, Jihad, after his own release.
The voice I got from Homs is that we just need help. We need outside help. We need foreign intervention. We need a no fly zone. We will take any of those options to move thing things forward, cause they are killing us every day."