Palestinian sources in the Gaza Strip said a Hamas field commander from the organization's military wing was killed Saturday as a result of an explosion in the southern Gaza Strip.
Nine other members of the Izz al-Din al-Qassam Brigades were injured, two of them were in serious condition.
The militants were working on an explosive device that accidentally blew up.
"The explosion occurred during military training and preparation of explosives," a statement from the Qassan Brigades said.
The explosion occured in the house of one of the militants west of Rafah, near the border with Egypt.
AFP contributed to this report.