Palestinian militants in Gaza resumed rocket fire on Israel early on Saturday after Israeli aircraft bombed Islamic Jihad targets in the region overnight, as fighting entered a fifth day.
Egypt has been trying to mediate a truce to the flare-up, which has so far left at least 33 Palestinians and one Israeli dead.
A spokesperson for the Palestinian Islamic Jihad group said that they have not accepted a new ceasefire proposal submitted by Egypt, and that discussions on the matter were continuing.
The military said it struck Islamic Jihad command centers and rocket launchers in its pre-dawn operations.
A few hours later Gaza militants fired rockets, setting off sirens and sending Israelis in border communities running to bomb shelters.
There were no reports of casualties.
(With input from Reuters)