Palestinian forces operating out of the Gaza Strip fired a rocket at the southern Israel town of Sderot on Sunday, the first such attack in over two weeks.
The rocket landed in an open area in the town, but started a fire and lightly wounded one resident.
Gaza's Hamas rulers agreed to an unofficial ceasefire with Israel earlier this summer, but have since violated the truce at least a dozen times.
Israeli defense officials also fear the Gaza-based terrorists are using the lull in the fighting to significantly boost their firepower in anticipation of another round of violence against the Jewish state.