The Israeli army released a video on Saturday that claimed to show several air strikes on what it said were operational command centers belonging to senior operatives in the Islamic Jihad in the Gaza Strip.
The grainy black and white aerial footage it released, showed explosions and clouds of smoke rising from bombed sites.
Reuters could not independently verify the authenticity of the video or the location.
Palestinian militants in Gaza resumed rocket fire at Israel at dawn after Israeli aircraft bombed Islamic Jihad targets in the enclave 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.