Analysis of information sources in references of the Wikipedia article "Timeline of the Israeli–Palestinian conflict in July–December 2015" in English language version.
However, masked and armed men from Al-Qassam Brigades, Hamas's military wing, blocked access to the area, fuelling suspicions that the house or a nearby property may have been used to store explosives or rockets. Some locals said the area was a weapons base for Al-Qassam Brigades; others said Israeli unexploded ordnance was the cause of the blast.
