In response to the Israeli airstrike that killed the senior Hamas commander, the US State Department has said it "supports Israel's right to defend itself" and "encourages Israel to continue to take every effort to avoid civilian casualties":
We strongly condemn the barrage of rocket fire from Gaza into southern Israel, and we regret the death and injury of innocent Israeli and Palestinian civilians caused by the ensuing violence.
There is no justification for the violence that Hamas and other terrorist organizations are employing against the people of Israel.
We call on those responsible to stop these cowardly acts immediately.
We support Israel's right to defend itself, and we encourage Israel to continue to take every effort to avoid civilian casualties.
Hamas claims to have the best interests of the Palestinian people at heart, yet it continues to engage in violence that is counterproductive to the Palestinian cause.
Attacking Israel on a near daily basis does nothing to help Palestinians in Gaza or to move the Palestinian people any closer to achieving self determination.
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.