Asked whether the United States was concerned that Israeli ground forces would enter Gaza in response to militant rocket attacks, Ben Rhodes, deputy national security advisor, told reporters:
Ultimately it's up to the Israeli government to make determinations about how they're going to carry out their military objectives.
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.