(JNS) - POLIN Museum of the History of Polish Jews revealed on Monday new-found images of the Nazis mercilessly putting down the 1943 Warsaw Ghetto Revolt.

Captured in secret by a Polish firefighter while German forces set fire to the Jewish ghetto, the photographs were recently discovered by the photographer's son in a family member's attic.

The photographer, Zbigniew Leszek Grzywaczewski, spent nearly four weeks in the ghetto (most likely between April 21 and May 15, 1943). In a diary he kept during the conflict, he wrote:

"The image of these people being dragged out of there [out of the...