A Hamas commander was killed on Saturday from an "internal explosion" in the southern Gaza city of Rafah, the terrorist group announced.
According to Palestinian reports, nine other members of Hamas's al-Qassam brigades were injured in what was deemed a "work accident".
Hamas named 30-year-old Ibrahim Nagib al-Ghoul as the casualty from the blast.
Meanwhile, Israeli media reported that the blast had occurred during a training session on producing explosive devices.
Yasser Okbi contributed to this report.