Hours after Israeli air strikes killed several people in the Gaza Strip, including a leader of the Palestinian militant organization Islamic Jihad (PIJ), several rockets were fired at Israel from the coastal strip, according to media reports. Air raid sirens were sounded in several Israeli cities, but the rockets went down in open terrain or were intercepted by the Iron Dome missile defence system, it said. Earlier, the Israeli military had attacked several targets in the coastal strip following threats by the Palestinian militant organization Islamic Jihad (PIJ). Gaza PIJ commander Taisir al-…