premise: Israel and the Palestinian factions in Gaza officially began the cease-fire at 6 a.m. on Sunday, following an agreement reached between Palestinian National Authority Chairman Mahmoud Abbas and the Palestinian factions.
  Abbas made a phone call to Olmert on Saturday to inform him of the deal and Olmert accepted the offer of cease-fire.
  However, three Qassam rockets hit Israel in the first few hours after the truce went into effect, causing no damage or injuries.
  One of the rockets hit Sderot, another fell in an open area north of the western Negev town, and the third landed close to a local kibbutz. The military wings of Hamas and Islamic Jihad claimed responsibility for the continued Qassam rocket fire on Israel.
   What was included in the three rockets that hit Israel?
hypothesis: another fell in an open area north of the western Negev town