Five Palestinians were killed and eight injured in a mysterious explosion in Sheja'eya neighborhood in Gaza City Tuesday, witnesses said.
Sources said circumstances were unknown surrounding the blast, which went off inside the home of Ahmed Sa'eed el Ja'bari, a senior Hamas leader who reportedly survived the blast.
Two of Ja'bari's sons were among the five fatalities and at least five of the injured were in serious condition, medical sources said.
