4 Die in Gaza City House Explosion By IBRAHIM BARZAK, Associated Press Writer 51 minutes ago GAZA CITY, Gaza Strip - An explosion destroyed a house after nightfall Monday in Gaza City, killing four people and injuring at least 30, residents and officials said. Three nearby buildings were reported on fire. Residents said the wrecked home in the Shajaiyeh neighborhood near the border with Israel belonged to a well-known family of supporters of the Islamic militant group Hamas, but the Israeli military denied having anything to do with the blast.