The Facebook account named "Al Khattab" published an image yesterday (November 12) showing a view of a tunnel.
The account in question claims that the image shows a fake tunnel, where an explosion occurred, after which five people were killed and four others were injured by Israeli commandos, who had fallen prey to this fake tunnel.
But after verification by hibrid.info, it has been confirmed that the image is old and that the claim published by the account in question is untrue.
Link to the image published on Facebook by the "Al Khattab" account:

Hibrid.info, after researching through the automated program "InVID", has found that the published image is old, published in 2014 (see here).

Based on the description of this image in this article, it is about a Hamas tunnel discovered by the Israeli army in 2014.
Analyze:
A Facebook account has published a photo from 2014 showing a Hamas tunnel discovered in Gaza by the Israeli army.
This image falsely claimed that the published footage was actual and depicted a fake tunnel in which an explosion occurred, killing five Israeli soldiers and injuring four others.
Based on its work methodology, hibrid.info assesses this post as "Disinformation".
Reasoning:
A “Disinformation” rating is given to media reporting that contains a “mix” of inaccurate sources or even half-truthful content. This rating will also address reports that have incorrect attributions or headlines that do not reflect the text in terms of information accuracy.