It has been a really black day here in Gaza. A terrible reminder - as if one were needed - that in warfare there is rarely such a thing as a precision strike.
Israeli says it is going out of its way to protect civilians.
It says it has dropped leaflets here and sent text messages warning people to stay away from what it calls "terrorist targets".
But what do you do if the terrorist target is living by you cheek-by-jowl? There are no bomb shelters here and certainly no early warning systems.
Israel may be ramping up the pace of its air attacks because it believes a ceasefire is imminent. An Israeli negotiating team has been in Cairo today.
Certainly the message from America and from the Arab world is that nobody wants this to escalate into a full-blown ground conflict.
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.