Hamas chief Khaled Meshaal condemned the killing of military chief Ahmed Jaabari and vowed to carry on the "resistance" against Israel.
Men and women in Palestine, we will continue the resistance.
Today's bombing in Tel Aviv is reminiscent of six years ago and could mark a serious escalation in the conflict.
A truce in Gaza suits all sides but none of the groups seem interested in a long-lasting solution.
A complex system of air defences has been instrumental in protecting Israel's population from incoming rockets.