This photo has been circulating online with a false caption or story: “Belgium soldiers hanging a seven year old black child in 1908”.

Katy Lee of AFP News posted the image and request to track down the origins of the photo via Twitter in April 2019.
Fake History Hunter managed to find the source and background information. Below is their Flickr post with more details. There are still some open questions. Please read their post and send possible further information via Flickr or Twitter (or drop a comment here).