GAZA CITY, Gaza Strip (AP) — Israeli authorities say Palestinian militants in the Gaza Strip have launched rockets toward southern Israel. Air raid sirens are going off across the area, warning residents. Wednesday’s launch comes a day after Israeli airstrikes killed three militant leaders and at least 10 civilians. Earlier in the day, Israeli aircraft struck targets in the Gaza Strip, killing at least one Palestinian and pushing the region closer toward a new round of heavy fighting. Tuesday’s strikes killed three senior Islamic Jihad militants and at least 10 civilians — most of them women and children. Palestinian militants have pledged to retaliate while Israel says it is prepared for a further escalation of hostilities.