VIDEO - As word of the suicide bombing in Dimona spread Monday, Gaza residents were treated to celebratory wreaths of flowers as well as sweets that were handed to drivers and passers-by. Gaza motorists receiving the treats and sweets also honked their horns in triumph and celebration. Reactions in Gaza (Video: Infolive.tv) The "party" was somewhat marred when word spread that Abu Sa'ad, a senior member and spokesman for the Salah al-Din Brigades, the Popular Resistance Committees' military wing, was killed in an IDF attack in the northern Gaza Strip town of Beit Lahiya. Flowers and candy (Photo: Reuters) A Hamas member told Ynet that the joy in Gaza is heightened by the fact that these attacks were carried out in spite of the siege on Gaza and the stringent security measures imposed by Israel. “The Palestinian organizations can strike back against Israel in spite of the war waged against them,” he said. The two Dimona bombers were Gaza residents, sources in the Strip told Ynet. Furthermore, several Palestinian organizations have claimed responsibility for the suicide bombing. One of the bombers was identified as Mussa Arafat, a Khan Younis residents from the Abu Ali Mustafa Brigades, the military wing of the Popular Front for the Liberation of Palestine. The second bomber is Lavway Lavwany, an activist in the al-Aqsa Martyrs Brigades, Fatah’s military wing. Gaza residents celebrate (Photo: Reuters) The al-Aqsa Martyrs' Brigades, Fatah's military wing, the Abu Ali Mustafa Brigades, and the United Resistance Brigades have claimed responsibility for Monday's terror attack in Dimona, Hizbullah's television station al-Manar reported. Palestinian President Mahmoud Abbas condemned the suicide bombing in Dimona Monday, as well as an earlier military raid by Israel in the West Bank. "The Palestinian Authority expresses its full condemnation of the Israeli military operation this dawn in (the Palestinian village of) Qabatia just as it condemns the operation that took place today in Dimona," a statement from Abbas's office said. The Palestinian Authority thus reinforced its longstanding stance objecting to all attacks on innocent civilians, be they Palestinian or Israeli.