This is pretty frickn weird and convoluted. Be sure to read the last two paragraphs of this brief summary via Daily Alert:
In Response to Palestinian Rocket Fire, Israel Strikes Gaza Targets - Matan Tzuri
The Israel Air Force struck four targets in Gaza early Wednesday in response to rocket fire at Israel Tuesday night. An IDF Spokesperson confirmed that one rocket fired from Gaza had landed near Gan Yavne. A resident from the area said, "We heard a really loud explosion, so loud that the walls of our house shook. It was really scary." (Ynet News)
See also When Two Gazans Fight, Israel Suffers - Avi Issacharoff
The rocket that Islamic Jihad launched at Israel on Tuesday came out of an internal conflict between sector commanders. In a personal conflict between the incoming and outgoing commanders of the northern Gaza Strip - that included the kidnapping of activists close to the dismissed commander - close associates of the latter fired rockets at Israel. Two Gazans fight one another, and the chips fly at Israel. (Times of Israel)
See also Hamas Arrests Gaza Rocket Launchers - Elior Levy (Ynet News)