The artwork, which many have taken to be a comment on the ongoing war in Gaza between Israel and Hamas, was situated at the intersection of Commercial Way and Southampton way in the Southwark area, before two men were pictured removing the sign from its post and taking it away.
One man had to stand on a rented Lime bike to prize the sign from its mount.
A 26-year-old man who witnessed the incident, and asked only to be referred to as Alex, told the PA news agency: “There were about two people there when I got there. We were all sort of admiring it and taking pictures.
“This guy comes up and grabs it. We watched in awe as he bashed it.
“He put the Lime bike under the sign, stood on the Lime bike and tried to hit the sign. He hit it with his hands and it wasn’t going anywhere.
“He fell off the Lime bike at one point. He disappeared and went away and about two minutes later he reappeared with bolt-cutters and just sort of tried and tied while everyone was watching.
“We said, ‘what are you doing’, but no one really knew what to do. We sort of just watched it happen.”
He went on to add that car horns sounded as the man carried out the deed, before running across the road and fleeing the scene.