GAZA STRIP - Hamas, the Palestinian faction controlling the Gaza Strip, blamed Israel for an explosion in the home of senior commander Ala Adnaf on Monday morning that caused the building to collapse.
The IDF Spokesperson's Office said Israel had nothing to do with the blast, which injured at least 24 people and may have killed two others, according to Palestinian medical sources in the Gaza Strip.
Over the weekend, Israel targeted arms smuggling tunnels along the border with the Egyptian Sinai.
The air strike was carried out after a Katyusha rocket fired from Gaza damaged two floors of a residential apartment building, vehicles and infrastructure in central Ashkelon.
Two residents were treated for shock. Izz al-Din al-Kassam Brigades, the "military wing" of Hamas, claimed responsibility for the attack.
Issa al-Batran, a senior Hamas commander specializing in manufacturing rockets, was killed in the air strike.
The following day, Palestinians in the Gaza Strip fired a rocket at the southern Israeli city of Sderot, causing extensive damage to a rehabilitation center in a Shaar Hanegev Regional Council building.
The center treats victims of terror attacks, handicapped IDF soldiers and patients suffering from post traumatic stress disorder.
Amos Lilo, an IDF soldier whose injuries during the 2006 Second Lebanon War left him handicapped, said hitting rehabilitation center was worse than hitting a residence.
"Please excuse the comparison, but this is a place for treating the handicapped. It's like damaging a hospital," Lilo said.
"It is very painful," he said after seeing the destruction caused by the rocket. "I am stunned by the damage…Targeting a center like this is like targeting my caretaker," Lilo said, adding that "it is a little stressful to hear a siren every few hours, especially for trauma victims."
Lilo uses crutches to get around.
YNet news contributed to this report.