The Israel Defense Forces (IDF) is reporting that a deadly blaze in Rafah, Gaza, may have been caused by a hidden store of Hamas weapons rather than the airstrike itself.

The IDF said its airstrike targeted Hamas commanders using small munitions not capable of causing such a fire independently reports Times of Israel. The IDF suspects that the fire was ignited by a secondary explosion from hidden munitions or other combustible materials belonging to the terrorist organization.