Hamas threatened on Thursday that unless Israel lifts its blockade on the Gaza Strip, 'there will be an explosion,' Channel 2 reported The report cited a statement issued by the spokesman of the Palestinian terrorist group's military wing at an event that presented a model of the Israeli bus that exploded in a bombing in Jerusalem claimed by Hamas last week. Hamas deputy leader in Gaza, Ismail Haniyeh, also spoke at the event and charged that the latest Hamas-claimed terrorist attack proved that the organization had not given up the 'resistance option' against Israel. Thursday's threat came as Israeli Jews were celebrating the culmination of the Passover holiday.